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Add host (root): upload fails with exit 71 and every retry repeats it; message tells the owner to inspect folders (J303) #394

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opened 2026-11-06 12:22:15 +00:00 by kayg · 28 comments

kayg commented

2026-11-06 12:22:15 +00:00

Owner

Owner report (production 74b9c4d80, 2026-11-06, Add host, root mode, host minipc01):

"Setting up minipc01 didn't finish. Setup could not verify ownership or permissions of its files on this host. Check /var/lib/infraternal, its parent folders and the infraternal service files with administrator access, then try again. The remote setup command returned a failure status."
"Copying the infraternal agent to the host didn't finish. Try again."
Details: "Failed step: Copy infraternal to the host", with Retry.

Owner: "what does the error mean?"

Production log (read by the orchestrator):

12:14:14 target root_minipc01.vpn.kayg.org step=connect failure_kind=setup mode=root
12:17:05 target root_minipc01 step=connect failure_kind=host-key mode=root
12:17:08 target root_minipc01 step=upload failure_kind=setup exit_status=71 mode=root
12:17:46 … 12:18:02 target root_minipc01 step=install exit_status=71 mode=root   (6 retries, all 71)

J303 scope: root-cause the exit-71 loop at upload/install in root mode; fix it test-first so the path ends in success or in the Start fresh offer (never a 71 loop, never removing anything not provably ours); rewrite the 71 message per TASTE ("Offer the way forward, not a chore"); post a read-only diagnostic the owner can run on minipc01; explain the rootless connect/setup failures. Related: #305, #387, #390.

Branch fix-root-add-71 from origin/dev. Not merging or deploying. minipc01 and production are not touched (field repro).

**Owner report (production 74b9c4d80, 2026-11-06, Add host, root mode, host minipc01):** > "Setting up minipc01 didn't finish. Setup could not verify ownership or permissions of its files on this host. Check /var/lib/infraternal, its parent folders and the infraternal service files with administrator access, then try again. The remote setup command returned a failure status." > "Copying the infraternal agent to the host didn't finish. Try again." > Details: "Failed step: Copy infraternal to the host", with Retry. Owner: "what does the error mean?" Production log (read by the orchestrator): ``` 12:14:14 target root_minipc01.vpn.kayg.org step=connect failure_kind=setup mode=root 12:17:05 target root_minipc01 step=connect failure_kind=host-key mode=root 12:17:08 target root_minipc01 step=upload failure_kind=setup exit_status=71 mode=root 12:17:46 … 12:18:02 target root_minipc01 step=install exit_status=71 mode=root (6 retries, all 71) ``` **J303 scope:** root-cause the exit-71 loop at upload/install in root mode; fix it test-first so the path ends in success or in the Start fresh offer (never a 71 loop, never removing anything not provably ours); rewrite the 71 message per TASTE ("Offer the way forward, not a chore"); post a read-only diagnostic the owner can run on minipc01; explain the rootless connect/setup failures. Related: #305, #387, #390. Branch `fix-root-add-71` from origin/dev. Not merging or deploying. minipc01 and production are not touched (field repro).

kayg commented

2026-11-06 12:22:24 +00:00

Author

Owner

Start: J303 on branch fix-root-add-71, base origin/dev 7b14fbb66.

Plan (about 3 h):

Map every exit-71 site the upload stage can reach in root mode, and compare it with what the read-only check (inspect_previous) accepts. Reproduce on compute01 as root in a throwaway fixture (shell oracle, plus a root run of the real scripts against a private base). (45 min)
Write a red test, then the fix: the check must recognise the state and offer Start fresh (or refuse with a specific reason) rather than say "clear" and let staging hit 71. (60 min)
Rewrite the 71 message per case. (30 min)
Run verify quick and verify fast on compute01 and post the evidence. (45 min)

Start: J303 on branch `fix-root-add-71`, base origin/dev `7b14fbb66`. Plan (about 3 h): 1. Map every exit-71 site the upload stage can reach in root mode, and compare it with what the read-only check (`inspect_previous`) accepts. Reproduce on compute01 as root in a throwaway fixture (shell oracle, plus a root run of the real scripts against a private base). (45 min) 2. Write a red test, then the fix: the check must recognise the state and offer Start fresh (or refuse with a specific reason) rather than say "clear" and let staging hit 71. (60 min) 3. Rewrite the 71 message per case. (30 min) 4. Run `verify quick` and `verify fast` on compute01 and post the evidence. (45 min)

kayg commented

2026-11-06 12:43:34 +00:00

Author

Owner

Finding 1: root cause of the exit-71 loop (reproduced as root on compute01, Debian 13)

The state: /var/lib/infraternal holds a finished install (no .bootstrap-lock journal, no rollback receipt) whose .bootstrap-owner names a host id this server doesn't know. It could come from the old production server (prod was redeployed fresh, without migration), or from an earlier add whose host was removed here.

Why it loops:

The read-only check (inspect_previous, crates/plugins/ssh/src/previous_attempt.sh) finds no journal. It validates .bootstrap-owner as 32 hex characters, then prints INFRATERNAL_SETUP_CLEAR. So nothing is offered: neither Start fresh nor "already added".
The server mints a new host id (uuid::Uuid::new_v4() in bootstrap.rs) and calls prepare_join_key, labelled step upload. Its STAGE_TRANSACTION (crates/plugins/ssh/src/install.rs) reaches:
```
[ ! -L "$base" ] && [ -f "$base/.bootstrap-owner" ] && [ ! -L "$base/.bootstrap-owner" ] && [ "$(cat "$base/.bootstrap-owner")" = "$host" ] || exit 71
```
That line exits 71 because the owner names the old host, not this attempt's new id.
Each retry runs the same check (CLEAR again) and gets a new id, so it hits the same line. These are the six install … exit_status=71 lines.

The interrupted first attempt is not the cause. The 12:14 connect failure and the 12:17:05 host-key failure both stop inside the read-only check, before anything is written, so they left nothing on minipc01. The leftover predates today.

PVE layout is not the cause. In root mode the scripts only read /var/lib/infraternal*, /etc/systemd/system/infraternal-agent.service and /usr/local/bin/infraternal. They never touch /etc/pve, /tmp or /run. A noexec mount would fail with 126 when the payload runs, not 71. Stock Debian (and PVE) /var/lib is root 0755, which passes the parent checks.

Red → green (root, real files, shell oracle crates/plugins/ssh/tests/previous_attempt_shell.py):

red at ceedd22f6: compute01:/root/j303/evidence/red-oracle-root.txt, with AssertionError: b'INFRATERNAL_SETUP_CLEAR\n' == b'INFRATERNAL_SETUP_CLEAR\n'. Staging with another host id returns 71 (test_staging_refuses_a_finished_install_for_another_host_id passes on both commits).
green at 2bd93e02a: compute01:/root/j303/evidence/green-oracle-root.txt, OK.

#387 / #390: a different cause. Those are journalled leftovers (a .stop endpoint, infraternal-login-locks/) that the inspection refuses with 71 at connect. This bug is a finished install that the inspection calls clear, followed by 71 at upload/install. No shared fix.

Finding 2: the rootless `kayg@minipc01` / `kayg@compute01` connect/setup failures

They come from a missing account. Through network access, the NetBird SSH server accepts the sign-in, then ends the session with exactly User authentication failed and status 1, not 255. Our classifier read that as the check script failing (kind install, log failure_kind=setup). Probe from code against compute01, where kayg doesn't exist (code:/tmp/j303/netbird-no-account.txt):

root: ok  exit=0
kayg: User authentication failed  exit=1
nosuchacct303: User authentication failed  exit=1
debug1: Remote protocol version 2.0, remote software version NetBird-SSH-Server-0.82.0

Not the same bug, but a small fix in the same flow, so it's included: a new failure kind no_account and the owner's wording.

## Finding 1: root cause of the exit-71 loop (reproduced as root on compute01, Debian 13) **The state:** `/var/lib/infraternal` holds a **finished** install (no `.bootstrap-lock` journal, no rollback receipt) whose `.bootstrap-owner` names a host id this server doesn't know. It could come from the old production server (prod was redeployed fresh, without migration), or from an earlier add whose host was removed here. **Why it loops:** 1. The read-only check (`inspect_previous`, `crates/plugins/ssh/src/previous_attempt.sh`) finds no journal. It validates `.bootstrap-owner` as 32 hex characters, then prints `INFRATERNAL_SETUP_CLEAR`. So nothing is offered: neither Start fresh nor "already added". 2. The server mints a new host id (`uuid::Uuid::new_v4()` in `bootstrap.rs`) and calls `prepare_join_key`, labelled step **upload**. Its `STAGE_TRANSACTION` (`crates/plugins/ssh/src/install.rs`) reaches: ``` [ ! -L "$base" ] && [ -f "$base/.bootstrap-owner" ] && [ ! -L "$base/.bootstrap-owner" ] && [ "$(cat "$base/.bootstrap-owner")" = "$host" ] || exit 71 ``` That line exits 71 because the owner names the old host, not this attempt's new id. 3. Each retry runs the same check (CLEAR again) and gets a new id, so it hits the same line. These are the six `install … exit_status=71` lines. **The interrupted first attempt is not the cause.** The 12:14 connect failure and the 12:17:05 host-key failure both stop inside the read-only check, before anything is written, so they left nothing on minipc01. The leftover predates today. **PVE layout is not the cause.** In root mode the scripts only read `/var/lib/infraternal*`, `/etc/systemd/system/infraternal-agent.service` and `/usr/local/bin/infraternal`. They never touch `/etc/pve`, `/tmp` or `/run`. A `noexec` mount would fail with 126 when the payload runs, not 71. Stock Debian (and PVE) `/var/lib` is root 0755, which passes the parent checks. **Red → green (root, real files, shell oracle `crates/plugins/ssh/tests/previous_attempt_shell.py`):** - red at `ceedd22f6`: `compute01:/root/j303/evidence/red-oracle-root.txt`, with `AssertionError: b'INFRATERNAL_SETUP_CLEAR\n' == b'INFRATERNAL_SETUP_CLEAR\n'`. Staging with another host id returns 71 (`test_staging_refuses_a_finished_install_for_another_host_id` passes on both commits). - green at `2bd93e02a`: `compute01:/root/j303/evidence/green-oracle-root.txt`, `OK`. **#387 / #390:** a different cause. Those are journalled leftovers (a `.stop` endpoint, `infraternal-login-locks/`) that the inspection refuses with 71 **at connect**. This bug is a finished install that the inspection calls clear, followed by 71 **at upload/install**. No shared fix. ## Finding 2: the rootless `kayg@minipc01` / `kayg@compute01` connect/setup failures They come from a missing account. Through network access, the NetBird SSH server accepts the sign-in, then ends the session with exactly `User authentication failed` and **status 1**, not 255. Our classifier read that as the check script failing (kind install, log `failure_kind=setup`). Probe from `code` against compute01, where `kayg` doesn't exist (`code:/tmp/j303/netbird-no-account.txt`): ``` root: ok exit=0 kayg: User authentication failed exit=1 nosuchacct303: User authentication failed exit=1 debug1: Remote protocol version 2.0, remote software version NetBird-SSH-Server-0.82.0 ``` Not the same bug, but a small fix in the same flow, so it's included: a new failure kind `no_account` and the owner's wording.

kayg commented

2026-11-06 13:01:55 +00:00

Author

Owner

Read-only diagnostic for the owner (minipc01)

This only reads and changes nothing. It never prints the agent's private state (state/ is listed, not read):

sudo sh -c 'cat /var/lib/infraternal/.bootstrap-owner; ls -la /var/lib/infraternal /var/lib/infraternal/bin /var/lib/infraternal/sessions; ls -lad /var/lib/infraternal.bootstrap-*; head -1 /etc/systemd/system/infraternal-agent.service; ls -la /usr/local/bin/infraternal; systemctl is-enabled infraternal-agent; systemctl is-active infraternal-agent; journalctl -u infraternal-agent -n 20 --no-pager -o short-iso'; namei -l /var/lib/infraternal

What I expect, if the root cause is right:

.bootstrap-owner holds a 32-hex host id that production doesn't have;
bin/live and bin/current exist, and there's no .bootstrap-lock;
the unit's first line is # infraternal bootstrap <that id>;
the journal names the server it was trying to reach, probably the old one.

Then the fix is either to remove the host on the server that still lists it, or (if that server is gone) to run sudo /var/lib/infraternal/bin/live --bootstrap-uninstall <that id> on minipc01. That second command is the infraternal agent's own by-hand uninstall (#235), and it removes nothing unless .bootstrap-owner names that id. I have not run anything on minipc01.

## Read-only diagnostic for the owner (minipc01) This only reads and changes nothing. It never prints the agent's private state (`state/` is listed, not read): ```sh sudo sh -c 'cat /var/lib/infraternal/.bootstrap-owner; ls -la /var/lib/infraternal /var/lib/infraternal/bin /var/lib/infraternal/sessions; ls -lad /var/lib/infraternal.bootstrap-*; head -1 /etc/systemd/system/infraternal-agent.service; ls -la /usr/local/bin/infraternal; systemctl is-enabled infraternal-agent; systemctl is-active infraternal-agent; journalctl -u infraternal-agent -n 20 --no-pager -o short-iso'; namei -l /var/lib/infraternal ``` What I expect, if the root cause is right: - `.bootstrap-owner` holds a 32-hex host id that production doesn't have; - `bin/live` and `bin/current` exist, and there's no `.bootstrap-lock`; - the unit's first line is `# infraternal bootstrap <that id>`; - the journal names the server it was trying to reach, probably the old one. Then the fix is either to remove the host on the server that still lists it, or (if that server is gone) to run `sudo /var/lib/infraternal/bin/live --bootstrap-uninstall <that id>` on minipc01. That second command is the infraternal agent's own by-hand uninstall (#235), and it removes nothing unless `.bootstrap-owner` names that id. **I have not run anything on minipc01.**

kayg commented

2026-11-06 13:08:09 +00:00

Author

Owner

Progress: pushed fix-root-add-71 at 120cb66b5, three atomic commits on origin/dev 68ee8d9a5:

a9828d94f add-host: name a finished install instead of calling it clear. The check prints INFRATERNAL_SETUP_INSTALLED <id>, and the server answers unrecognized_install at connect, after the already-added preflight, before any write. Other staging 71s become the same kind, with one sentence and the location in Details.
feb7eaaa3 add-host: say when the login name is no account on the host. The NetBird User authentication failed + status 1 reply becomes no_account. Log kinds are finer too: unsupported, leftovers, setup-running, no-account, unrecognized-install.
120cb66b5 tracer: plain pages for both kinds, and a one-line progress row (the interim card's wrapped red text).

Not in this slice (needs an owner decision): Start fresh for a finished install that another server owns. Under D337 that's a takeover (set the install aside, restore it on failure, delete it on commit), not leftover cleanup. The stuck-upgrade Re-enroll machinery covers only journalled installs. Until then the page names the state and gives the way forward (remove the host on the other server, or the by-hand uninstall in the diagnostic comment above).

The full ssh tests, verify quick, the browser checks and verify fast are queued on compute01 (build-slot). Logs will be under compute01:~claude/j303/.

Progress: pushed `fix-root-add-71` at `120cb66b5`, three atomic commits on origin/dev `68ee8d9a5`: 1. `a9828d94f` add-host: name a finished install instead of calling it clear. The check prints `INFRATERNAL_SETUP_INSTALLED <id>`, and the server answers `unrecognized_install` at connect, after the already-added preflight, before any write. Other staging 71s become the same kind, with one sentence and the location in Details. 2. `feb7eaaa3` add-host: say when the login name is no account on the host. The NetBird `User authentication failed` + status 1 reply becomes `no_account`. Log kinds are finer too: `unsupported`, `leftovers`, `setup-running`, `no-account`, `unrecognized-install`. 3. `120cb66b5` tracer: plain pages for both kinds, and a one-line progress row (the interim card's wrapped red text). **Not in this slice (needs an owner decision):** Start fresh for a finished install that another server owns. Under D337 that's a takeover (set the install aside, restore it on failure, delete it on commit), not leftover cleanup. The stuck-upgrade Re-enroll machinery covers only journalled installs. Until then the page names the state and gives the way forward (remove the host on the other server, or the by-hand uninstall in the diagnostic comment above). The full ssh tests, `verify quick`, the browser checks and `verify fast` are queued on compute01 (build-slot). Logs will be under `compute01:~claude/j303/`.

kayg commented

2026-11-06 15:43:24 +00:00

Author

Owner

Finish: J303, branch `fix-root-add-71`, head `483685b6a` (base origin/dev `68ee8d9a5`)

Commits:

a9828d94f add-host: name a finished install instead of calling it clear
feb7eaaa3 add-host: say when the login name is no account on the host
120cb66b5 tracer: plain pages for #394's failures; one-line progress rows
49fb32c9d, 5ca5462b0 D345 docs; 02b5823db clippy pedantic; 8646f0d06, a1d031f02 spec fixes; 483685b6a icon and title after the screenshot review

Gate

scripts/verify fast at a1d031f02 (compute01), verbatim, VERIFY_FAST_EXIT=0:

+---------------------------+--------------+
| Rust gate                 | Result       |
+---------------------------+--------------+
| Nix Cargo vendoring       | PASS         |
| fmt                       | PASS         |
| migration names           | PASS         |
| migration tooling tests   | PASS         |
| VT native fmt             | PASS         |
| CLI plugin compile-out    | PASS         |
| clippy                    | PASS         |
| SSH runtime test helper   | PASS         |
| real-binary fixture paths | PASS         |
| Traefik component manifest | PASS         |
| release component publication | PASS         |
| test                      | PASS         |
| SSH inode reuse fixture   | PASS         |
| shim process-per-user     | PASS         |
| cargo-deny                | PASS         |
| gate architecture         | PASS         |
| doc coverage ratchet      | PASS         |
| shape lints off (D351)    | PASS         |
| doc comments on diff      | PASS         |
| fixed test waits          | PASS         |
| privileged integration    | PASS         |
| probe release exclusion   | PASS         |
| nightly fuzz reporter     | PASS         |
| static builds             | PASS         |
+---------------------------+--------------+

scripts/verify fast at 483685b6a: every row passed except test, which failed (FAIL (101)) on real_binary_rootless_cleanup_survives_sender_disconnect_before_readiness (crates/infraternal/tests/agent_daemon.rs:199, control action result differs: resource_unavailable on terminal.login.revoke). This is a flake that #394 doesn't touch:

Run alone three times on the same build, it gave pass, pass, FAIL (code:/tmp/j303/flaky-rerun.txt).
git diff --stat 68ee8d9a5 HEAD -- crates/infraternal crates/infraternal-agent crates/infraternal-shim crates/plugins/remote scripts is empty.
The only change since the green run is tracer copy and icon (483685b6a).
Full log: compute01:~claude/j303/verify-fast.log.

verify quick at 483685b6a: QUICK pre-check passed, every row PASS (compute01:~claude/j303/verify-quick.log).

Static sizes: x86_64 27,779,984 B and aarch64 24,995,968 B (report only, against the historical baseline; not measured against dev). The slice adds a few strings and one enum arm.

Real-environment evidence

Root, real files, Debian 13 (compute01): full shell oracle as root with the real recovery helper. 92 of 97 pass (/root/j303/evidence/oracle-full-root.txt). The other five fail identically on unmodified origin/dev as root, because they're built for an unprivileged user (their precondition expects a permission error or a rootless uid): /root/j303/evidence/oracle-dev-root-5.txt. Red/green for #394: /root/j303/evidence/red-oracle-root.txt → green-oracle-root.txt. The unprivileged oracle passes inside cargo test.
NetBird missing account: code:/tmp/j303/netbird-no-account.txt (see finding 2).
Browser, production build plus provisioning double: 11 of 11 pass (compute01:~claude/j303/browser.log). Both pages, and a one-line row that doesn't overlap the host name, at 1440, 393 and 375. Screenshots attached below (393/375, ink).

Root cause, one sentence

The read-only check called a finished install for an unknown host id "clear", so each add minted a new host id and staging refused it at STAGE_TRANSACTION's .bootstrap-owner = $host line with exit 71, forever.

Open (owner decision)

Start fresh (a D337 takeover) for a finished install that another server owns. It needs set-aside, restore and delete-on-commit for a journal-less install, plus its own security review. Today the page says what was found and how to remove it.

## Finish: J303, branch `fix-root-add-71`, head `483685b6a` (base origin/dev `68ee8d9a5`) Commits: - `a9828d94f` add-host: name a finished install instead of calling it clear - `feb7eaaa3` add-host: say when the login name is no account on the host - `120cb66b5` tracer: plain pages for #394's failures; one-line progress rows - `49fb32c9d`, `5ca5462b0` D345 docs; `02b5823db` clippy pedantic; `8646f0d06`, `a1d031f02` spec fixes; `483685b6a` icon and title after the screenshot review ### Gate `scripts/verify fast` at **`a1d031f02`** (compute01), verbatim, `VERIFY_FAST_EXIT=0`: ``` +---------------------------+--------------+ | Rust gate | Result | +---------------------------+--------------+ | Nix Cargo vendoring | PASS | | fmt | PASS | | migration names | PASS | | migration tooling tests | PASS | | VT native fmt | PASS | | CLI plugin compile-out | PASS | | clippy | PASS | | SSH runtime test helper | PASS | | real-binary fixture paths | PASS | | Traefik component manifest | PASS | | release component publication | PASS | | test | PASS | | SSH inode reuse fixture | PASS | | shim process-per-user | PASS | | cargo-deny | PASS | | gate architecture | PASS | | doc coverage ratchet | PASS | | shape lints off (D351) | PASS | | doc comments on diff | PASS | | fixed test waits | PASS | | privileged integration | PASS | | probe release exclusion | PASS | | nightly fuzz reporter | PASS | | static builds | PASS | +---------------------------+--------------+ ``` `scripts/verify fast` at **`483685b6a`**: every row passed except `test`, which failed (`FAIL (101)`) on `real_binary_rootless_cleanup_survives_sender_disconnect_before_readiness` (`crates/infraternal/tests/agent_daemon.rs:199`, `control action result differs: resource_unavailable` on `terminal.login.revoke`). This is a flake that #394 doesn't touch: - Run alone three times on the same build, it gave pass, pass, FAIL (`code:/tmp/j303/flaky-rerun.txt`). - `git diff --stat 68ee8d9a5 HEAD -- crates/infraternal crates/infraternal-agent crates/infraternal-shim crates/plugins/remote scripts` is empty. - The only change since the green run is tracer copy and icon (`483685b6a`). Full log: `compute01:~claude/j303/verify-fast.log`. `verify quick` at `483685b6a`: `QUICK pre-check passed`, every row PASS (`compute01:~claude/j303/verify-quick.log`). Static sizes: x86_64 27,779,984 B and aarch64 24,995,968 B (report only, against the historical baseline; not measured against dev). The slice adds a few strings and one enum arm. ### Real-environment evidence - **Root, real files, Debian 13 (compute01):** full shell oracle as root with the real recovery helper. 92 of 97 pass (`/root/j303/evidence/oracle-full-root.txt`). The other five fail identically on unmodified origin/dev as root, because they're built for an unprivileged user (their precondition expects a permission error or a rootless uid): `/root/j303/evidence/oracle-dev-root-5.txt`. Red/green for #394: `/root/j303/evidence/red-oracle-root.txt` → `green-oracle-root.txt`. The unprivileged oracle passes inside `cargo test`. - **NetBird missing account:** `code:/tmp/j303/netbird-no-account.txt` (see finding 2). - **Browser, production build plus provisioning double:** 11 of 11 pass (`compute01:~claude/j303/browser.log`). Both pages, and a one-line row that doesn't overlap the host name, at 1440, 393 and 375. Screenshots attached below (393/375, ink). ### Root cause, one sentence The read-only check called a finished install for an unknown host id "clear", so each add minted a new host id and staging refused it at `STAGE_TRANSACTION`'s `.bootstrap-owner = $host` line with exit 71, forever. ### Open (owner decision) Start fresh (a D337 takeover) for a finished install that another server owns. It needs set-aside, restore and delete-on-commit for a journal-less install, plus its own security review. Today the page says what was found and how to remove it.

installed-failure-393.png

105 KiB

no-account-375.png

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progress-row-375.png

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installed-failure-1440.png

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kayg commented

2026-11-06 16:39:12 +00:00

Author

Owner

Start: J315, D359 Take over. Branch addhost-takeover-d359, stacked on fix-root-add-71 at 483685b6a (dev merge base 68ee8d9a5; D359 is on dev at 37c93637e).

J205's takeover-proof-305-j205 is the old-server-proof path (D337), which isn't merged. Its set-aside and restore machinery is dev's Re-enroll (supersede_stuck_install, restore_superseded_install, retire_set_aside on commit), so this job builds on that, not on J205's proof code.

Plan (about 6 h):

Check script (read-only). A finished install's record grows from INSTALLED <id> to INSTALLED <id> <dev:ino> <live|idle> <ready|busy|unproven>. ready is root mode only: validate_upgrade_root proves every entry, the launcher and the unit header + ExecStart are ours, and the holder scan (J241/J272 scan_holders, with only the agent unit's own processes skipped) finds nothing else using it. (45 min)
take_over_finished_install (root only, under the setup guard, bound to the exact record). It builds a 0700 root-only set-aside /var/lib/infraternal.bootstrap-takeover-<id> (service state found + unit copy), renames it into place, and only then stops and disables the agent (unit already proven ours). It re-checks that nothing else holds the install, renames /var/lib/infraternal into the set-aside and removes the unit and launcher. restore_taken_over_install is idempotent and puts back whatever has moved: base, unit, launcher, enabled/active as found. A commit deletes the set-aside through retire_set_aside; a later Check offers Put it back. Shell oracle tests first, plus a SIGKILL at every step. (2 h)
Server. On INSTALLED … ready in root mode, with the old id unknown here or removed: pause with a confirmation naming the old id → set aside → fresh install with a new host id → restore on any failure. Rootless, busy or unproven keep J303's page. (1.5 h)
Wizard. The "set up elsewhere" page gets Take over in root mode only, behind a confirmation that shows the old install id. (1 h)
Real root on compute01 in the owner's shape (a finished install with an unknown owner id → Take over → terminal → echo ok), plus a failure-injection run that restores the old install. Then verify quick and fast. (1 h)

Start: **J315**, D359 Take over. Branch `addhost-takeover-d359`, stacked on `fix-root-add-71` at `483685b6a` (dev merge base `68ee8d9a5`; D359 is on dev at `37c93637e`). J205's `takeover-proof-305-j205` is the old-server-proof path (D337), which isn't merged. Its set-aside and restore machinery is dev's Re-enroll (`supersede_stuck_install`, `restore_superseded_install`, `retire_set_aside` on commit), so this job builds on that, not on J205's proof code. **Plan (about 6 h):** 1. **Check script (read-only).** A finished install's record grows from `INSTALLED <id>` to `INSTALLED <id> <dev:ino> <live|idle> <ready|busy|unproven>`. `ready` is root mode only: `validate_upgrade_root` proves every entry, the launcher and the unit header + ExecStart are ours, and the holder scan (J241/J272 `scan_holders`, with only the agent unit's own processes skipped) finds nothing else using it. (45 min) 2. **`take_over_finished_install`** (root only, under the setup guard, bound to the exact record). It builds a 0700 root-only set-aside `/var/lib/infraternal.bootstrap-takeover-<id>` (service state found + unit copy), renames it into place, and only then stops and disables the agent (unit already proven ours). It re-checks that nothing else holds the install, renames `/var/lib/infraternal` into the set-aside and removes the unit and launcher. **`restore_taken_over_install`** is idempotent and puts back whatever has moved: base, unit, launcher, enabled/active as found. A commit deletes the set-aside through `retire_set_aside`; a later Check offers Put it back. Shell oracle tests first, plus a SIGKILL at every step. (2 h) 3. **Server.** On `INSTALLED … ready` in root mode, with the old id unknown here or removed: pause with a confirmation naming the old id → set aside → fresh install with a new host id → restore on any failure. Rootless, `busy` or `unproven` keep J303's page. (1.5 h) 4. **Wizard.** The "set up elsewhere" page gets **Take over** in root mode only, behind a confirmation that shows the old install id. (1 h) 5. **Real root on compute01** in the owner's shape (a finished install with an unknown owner id → Take over → terminal → `echo ok`), plus a failure-injection run that restores the old install. Then `verify quick` and `fast`. (1 h)

kayg commented

2026-11-06 17:16:57 +00:00

Author

Owner

J314 review of `fix-root-add-71` @ `483685b6a`: REQUEST CHANGES

The root cause and the connect-time stop are right. I reproduced both as root, and the install was untouched byte for byte. Two small fixes are needed before merge: the generic 71 title (P2-1) and the no_account wording (P2-2). Following the reviewer rule, I didn't rerun the gate. I read J303's gate output above.

1. The owner's state as root: confirmed

I ran the shipped shell from each checkout on compute01, as root, on real files. The fixture is a finished install with no journal: bin/live, bin/current, state/, unit and launcher, and a .bootstrap-owner naming an unknown id. Before and after each step I fingerprinted the whole tree (path, mode, uid/gid, size, mtime_ns, contents and link targets). The script is compute01:/root/j314/review_oracle.py, and its output is in compute01:/root/j314/ev/review-oracle-root.txt.

dev 68ee8d9a5:    check=INFRATERNAL_SETUP_CLEAR; retry 1..3: check=CLEAR, stage rc=71 (each time)
branch 483685b6a: check=INFRATERNAL_SETUP_INSTALLED 1111…; mutating manager calls: []
both:             tree unchanged after check: True; tree unchanged after 3 check+stage rounds: True

So dev loops: CLEAR, then a new id, then 71, on every retry. On the branch the check names the install, and bootstrap.rs returns installed_elsewhere before payload() and Installation::new_pending, so nothing is staged.

2. Can "set up elsewhere" misfire?

This server's own host: preflight_existing_host runs before the new check, and it matches by owner plus address or trust_lookup (the host key). So an already-added host, or a re-add under another name with the same key, still gets "already added". A stuck upgrade or Re-enroll carries previous, so Remains is never Installed there.
Half-finished journalled installs: these still get Start fresh. The INSTALLED branch sits inside the "no receipt, no lock, no acquiring" block, after report_set_aside. As root: receipt gives INFRATERNAL_SETUP_STALE …, .bootstrap-lock gives INFRATERNAL_SETUP_UPGRADE …, and set-aside is still reported first (same file, test 2).
Other uses of inspect_previous (replace_stuck_install, finish_stuck_upgrade, the Re-enroll body) compare against a journal record. They answered 75 to CLEAR before and answer 75 to INSTALLED now, so nothing changes there.
#387 / #390: independent. Those are refusals of journalled leftovers at connect (previous_attempt::classify), and this branch doesn't touch that path. One side note, not from this branch: their page still says only "Connecting to the host failed."
P3, wording that can be wrong: "this server does not know" is false in two cases. (a) Another person on this server added the host; existing_host filters on owner_id. (b) existing_host(retire=true) has just retired this server's own abandoned setup record. Both cases still refuse correctly, only the sentence is off. The check already parses the owner id and then discards it. The D359 Take over needs it anyway, so pass it to the server then.

P2-1: every other staging 71 is now titled "{host} is set up elsewhere"

Failure::in_mode maps any upload/install 71 to FailureKind::UnrecognizedInstall (model.rs). The tracer gives that kind one title, ${name} is set up elsewhere (model.ts guideFor), with an info icon and Try again. These are the other exit 71 sites in install.rs (45 in all): payload cache owner and mode, digest not allowed, a leftover $prepared, symlinked state/bin, and a foreign directory with no owner record. The last one is foreign_data_refusal_retains_exit_status_and_actionable_directory, which now asserts this kind. None of them means "set up elsewhere", and Try again repeats the same 71. The task was one plain sentence for each of these refusals, so keep the "set up elsewhere" title for installed_elsewhere only. Give UNPROVEN_FILES its own kind, or its own title in the tracer, plus a test.

P2-2: `no_account` isn't certain, so the wording must hedge

What I probed. NetBird SSH 0.82.0 from code to compute01 (code:/tmp/j314/netbird-probe.txt). A missing user gives exactly User authentication failed with status 1. A password-locked account (usermod -L) signs in fine. An expired account gives Your account has expired… / su: Authentication failure. A nologin account gives This account is currently not available. So none of these is mislabelled. OpenSSH wrong-key or wrong-password failures print Permission denied (…) and don't match either.
Why it still isn't certain. In NetBird's v0.82.0 source, client/ssh/server/session_handlers.go buildUserLookupErrorMessage returns "User authentication failed" as its default case. That covers any userPrivilegeCheck error except the root and privileged ones, and those have their own text. It includes UserNotFoundError{Cause: err} for any getent.LookupUser failure (for example sssd or LDAP being down for a directory account), a failed lookup of the server's own current user, and an invalid user name.
Fix. Hedge the title, for example: "noacct.lab couldn't find an account named kayg". The lede can stay.
Status 1. The contract says "(status 1)", but classify doesn't check the status. Either check it or drop it from the contract.

4. Flaky test: pre-existing on plain dev, unrelated

real_binary_rootless_cleanup_survives_sender_disconnect_before_readiness, run on dev 68ee8d9a5 (no #394 code) on compute01, gave:

The 5× run you asked for: 5/5 pass.
40 more runs of the same test binary: 37 pass, 3 fail. The failures match J303's exactly: agent_daemon.rs:199, control action result differs: resource_unavailable.

The logs are in compute01:~claude/j314/flaky.log and ~claude/j314/fail.*. In total dev failed 3 of 45 runs, so the flake predates this branch and doesn't block it. It deserves its own issue.

5. Screenshots at 1440 / 393 / 375 (`/tmp/j303/shots2`, the attachments above), against TASTE

Offer the way forward: the page doesn't send anyone to inspect folders and keeps paths in Details. Good. But for the owner's real case (monitor01 is gone) it offers no way forward: "remove it there" can't be done, and Try again repeats the failure. D359 (owner, today) decided on Take over for exactly this. The contract text says "Taking such an install over (D337) is not offered by this slice". It should cite D359, and there needs to be a follow-up issue for Take over. I'm not blocking on that, since it is a separate slice.
375×667, P3: the page is scrolled, so the hero icon and the first line of the title are cut off at the top. At 375 the two-sentence lede is too long for the card.
Details, P3: after the spec opens Details, the 1440 and 393 captures show an open caret with nothing under it. Either the capture caught the open animation or the <pre> isn't rendered, and toContainText passes either way. Assert toBeVisible() and recapture.
The icon matches the news, P3: the page is neutral (info icon), but the progress row and its stage show the same news in red (progress-row-375). Pick one tone.
no_account: a warning icon with Back only. Fine. A "Use root" action would offer the way forward instead of the instruction "add it as root" (P3).
One line per progress row: confirmed, with an ellipsis at 375 and no overlap with the name.

Verdict

REQUEST CHANGES: P2-1 (the generic 71 title) and P2-2 (hedged no_account wording, and the status check or the contract fix). The P3s are optional, apart from the D359 follow-up issue, which the orchestrator should open.

## J314 review of `fix-root-add-71` @ `483685b6a`: REQUEST CHANGES The root cause and the connect-time stop are right. I reproduced both as root, and the install was untouched byte for byte. Two small fixes are needed before merge: the generic 71 title (P2-1) and the `no_account` wording (P2-2). Following the reviewer rule, I didn't rerun the gate. I read J303's gate output above. ### 1. The owner's state as root: confirmed I ran the shipped shell from each checkout on compute01, as root, on real files. The fixture is a finished install with no journal: `bin/live`, `bin/current`, `state/`, unit and launcher, and a `.bootstrap-owner` naming an unknown id. Before and after each step I fingerprinted the whole tree (path, mode, uid/gid, size, mtime_ns, contents and link targets). The script is `compute01:/root/j314/review_oracle.py`, and its output is in `compute01:/root/j314/ev/review-oracle-root.txt`. ``` dev 68ee8d9a5: check=INFRATERNAL_SETUP_CLEAR; retry 1..3: check=CLEAR, stage rc=71 (each time) branch 483685b6a: check=INFRATERNAL_SETUP_INSTALLED 1111…; mutating manager calls: [] both: tree unchanged after check: True; tree unchanged after 3 check+stage rounds: True ``` So dev loops: CLEAR, then a new id, then 71, on every retry. On the branch the check names the install, and `bootstrap.rs` returns `installed_elsewhere` before `payload()` and `Installation::new_pending`, so nothing is staged. ### 2. Can "set up elsewhere" misfire? - **This server's own host:** `preflight_existing_host` runs before the new check, and it matches by owner plus address or `trust_lookup` (the host key). So an already-added host, or a re-add under another name with the same key, still gets "already added". A stuck upgrade or Re-enroll carries `previous`, so `Remains` is never `Installed` there. - **Half-finished journalled installs:** these still get Start fresh. The `INSTALLED` branch sits inside the "no receipt, no lock, no acquiring" block, after `report_set_aside`. As root: receipt gives `INFRATERNAL_SETUP_STALE …`, `.bootstrap-lock` gives `INFRATERNAL_SETUP_UPGRADE …`, and set-aside is still reported first (same file, test 2). - **Other uses of `inspect_previous`** (`replace_stuck_install`, `finish_stuck_upgrade`, the Re-enroll body) compare against a journal record. They answered 75 to CLEAR before and answer 75 to INSTALLED now, so nothing changes there. - **#387 / #390:** independent. Those are refusals of journalled leftovers at connect (`previous_attempt::classify`), and this branch doesn't touch that path. One side note, not from this branch: their page still says only "Connecting to the host failed." - **P3, wording that can be wrong:** "this server does not know" is false in two cases. (a) Another person on this server added the host; `existing_host` filters on `owner_id`. (b) `existing_host(retire=true)` has just retired this server's own abandoned setup record. Both cases still refuse correctly, only the sentence is off. The check already parses the owner id and then discards it. The D359 Take over needs it anyway, so pass it to the server then. ### P2-1: every other staging 71 is now titled "{host} is set up elsewhere" `Failure::in_mode` maps any upload/install 71 to `FailureKind::UnrecognizedInstall` (`model.rs`). The tracer gives that kind one title, `${name} is set up elsewhere` (`model.ts` `guideFor`), with an info icon and **Try again**. These are the other `exit 71` sites in `install.rs` (45 in all): payload cache owner and mode, digest not allowed, a leftover `$prepared`, symlinked `state`/`bin`, and a foreign directory with no owner record. The last one is `foreign_data_refusal_retains_exit_status_and_actionable_directory`, which now asserts this kind. None of them means "set up elsewhere", and Try again repeats the same 71. The task was one plain sentence for each of these refusals, so keep the "set up elsewhere" title for `installed_elsewhere` only. Give `UNPROVEN_FILES` its own kind, or its own title in the tracer, plus a test. ### P2-2: `no_account` isn't certain, so the wording must hedge - **What I probed.** NetBird SSH 0.82.0 from `code` to compute01 (`code:/tmp/j314/netbird-probe.txt`). A missing user gives exactly `User authentication failed` with status 1. A password-locked account (`usermod -L`) signs in fine. An expired account gives `Your account has expired…` / `su: Authentication failure`. A nologin account gives `This account is currently not available.` So none of these is mislabelled. OpenSSH wrong-key or wrong-password failures print `Permission denied (…)` and don't match either. - **Why it still isn't certain.** In NetBird's v0.82.0 source, `client/ssh/server/session_handlers.go` `buildUserLookupErrorMessage` returns `"User authentication failed"` as its **default** case. That covers any `userPrivilegeCheck` error except the root and privileged ones, and those have their own text. It includes `UserNotFoundError{Cause: err}` for **any** `getent.LookupUser` failure (for example sssd or LDAP being down for a directory account), a failed lookup of the server's own current user, and an invalid user name. - **Fix.** Hedge the title, for example: "noacct.lab couldn't find an account named kayg". The lede can stay. - **Status 1.** The contract says "(status 1)", but `classify` doesn't check the status. Either check it or drop it from the contract. ### 4. Flaky test: pre-existing on plain dev, unrelated `real_binary_rootless_cleanup_survives_sender_disconnect_before_readiness`, run on dev `68ee8d9a5` (no #394 code) on compute01, gave: - **The 5× run you asked for:** 5/5 pass. - **40 more runs of the same test binary:** **37 pass, 3 fail.** The failures match J303's exactly: `agent_daemon.rs:199`, `control action result differs: resource_unavailable`. The logs are in `compute01:~claude/j314/flaky.log` and `~claude/j314/fail.*`. In total dev failed 3 of 45 runs, so the flake predates this branch and doesn't block it. It deserves its own issue. ### 5. Screenshots at 1440 / 393 / 375 (`/tmp/j303/shots2`, the attachments above), against TASTE - **Offer the way forward:** the page doesn't send anyone to inspect folders and keeps paths in Details. Good. But for the owner's real case (monitor01 is gone) it offers no way forward: "remove it there" can't be done, and Try again repeats the failure. D359 (owner, today) decided on **Take over** for exactly this. The contract text says "Taking such an install over (D337) is not offered by this slice". It should cite D359, and there needs to be a follow-up issue for Take over. I'm not blocking on that, since it is a separate slice. - **375×667, P3:** the page is scrolled, so the hero icon and the first line of the title are cut off at the top. At 375 the two-sentence lede is too long for the card. - **Details, P3:** after the spec opens Details, the 1440 and 393 captures show an open caret with nothing under it. Either the capture caught the open animation or the `<pre>` isn't rendered, and `toContainText` passes either way. Assert `toBeVisible()` and recapture. - **The icon matches the news, P3:** the page is neutral (info icon), but the progress row and its stage show the same news in red (`progress-row-375`). Pick one tone. - **no_account:** a warning icon with Back only. Fine. A "Use root" action would offer the way forward instead of the instruction "add it as root" (P3). - One line per progress row: confirmed, with an ellipsis at 375 and no overlap with the name. ### Verdict **REQUEST CHANGES**: P2-1 (the generic 71 title) and P2-2 (hedged `no_account` wording, and the status check or the contract fix). The P3s are optional, apart from the D359 follow-up issue, which the orchestrator should open.

kayg referenced this issue

2026-11-06 17:20:02 +00:00

Flaky: real_binary_rootless_cleanup_survives_sender_disconnect_before_readiness (~1/15 on dev) #404

kayg referenced this issue

2026-11-06 17:20:11 +00:00

Flaky: real_binary_rootless_cleanup_survives_sender_disconnect_before_readiness (about 1 in 15 on dev) #405

kayg commented

2026-11-06 17:31:38 +00:00

Author

Owner

Progress (J315). I now also own fix-root-add-71 (J303 finished). J314's review (82622) is addressed there as atomic commits on 483685b6a:

bbb52f2c6 P2-1. Each staging 71 names its cause with one fixed stderr line, INFRATERNAL_REFUSED <cache|prepared|foreign|owner>. The transport reads only that line, only on exit 71. Only owner (an owner record for another host) stays unrecognized_install, "set up elsewhere". Every other 71 is the new kind unproven_files, with its own sentence per cause.
3a41d57a0 P2-2. no_account now requires status 1 on a command session (command_failure, unit-tested). The master connection matches on the line alone, and the contract says so. The title is hedged: "minipc01 couldn't find an account named kayg".
36189cf6f P3. "set up elsewhere" now says only what is true in every case: "...an infraternal agent from an earlier setup, so nothing was changed. If an infraternal server still lists it, remove it there...".
2714588fc Tracer. One title per refusal (cache / prepared copy / foreign folder / unnamed), with no Try again and no row retry for dead ends.
a0b629f7e Screenshot nits. The progress row carries the page's tone, so a neutral page's row is never red: line, stage detail, segment and mark. The 375 clip and the empty Details came from capturing mid-expansion after clicking Details. The spec now asserts the page opens unscrolled with icon and title inside the card, captures that, then waits for the Details text to be visible and captures again.

fix-root-add-71 head: a0b629f7e.

D359 Take over, restacked on that: addhost-takeover-d359 head ca21fe76e:

3302ab2c4: oracle tests, red first. Red at 483685b6a: 22 failures and 2 errors, all of them the new or updated cases (compute01:~claude/j315/red-oracle.txt). Green with the implementation: 114/114 unprivileged, including a SIGKILL after every single change of the take over and of the restore (compute01:~claude/j315/green-oracle.txt).
270bb7a28: host and server.
ca21fe76e: wizard.

The Take over copy is reworded the same way ("from an earlier setup that isn't one of this server's hosts").

Next: the full ssh, server and tracer tests, plus the browser cases, run through build-slot on compute01 (queued, logs under compute01:~claude/j315/). After those: the real-root run in the owner's shape, failure injection, then verify quick and fast on both heads.

Progress (J315). I now also own `fix-root-add-71` (J303 finished). J314's review (82622) is addressed there as atomic commits on `483685b6a`: - `bbb52f2c6` **P2-1.** Each staging 71 names its cause with one fixed stderr line, `INFRATERNAL_REFUSED <cache|prepared|foreign|owner>`. The transport reads only that line, only on exit 71. Only `owner` (an owner record for another host) stays `unrecognized_install`, "set up elsewhere". Every other 71 is the new kind `unproven_files`, with its own sentence per cause. - `3a41d57a0` **P2-2.** `no_account` now requires status 1 on a command session (`command_failure`, unit-tested). The master connection matches on the line alone, and the contract says so. The title is hedged: "minipc01 couldn't find an account named kayg". - `36189cf6f` **P3.** "set up elsewhere" now says only what is true in every case: "...an infraternal agent from an earlier setup, so nothing was changed. If an infraternal server still lists it, remove it there...". - `2714588fc` **Tracer.** One title per refusal (cache / prepared copy / foreign folder / unnamed), with no Try again and no row retry for dead ends. - `a0b629f7e` **Screenshot nits.** The progress row carries the page's tone, so a neutral page's row is never red: line, stage detail, segment and mark. The 375 clip and the empty Details came from capturing mid-expansion after clicking Details. The spec now asserts the page opens unscrolled with icon and title inside the card, captures that, then waits for the Details text to be visible and captures again. **`fix-root-add-71` head: `a0b629f7e`.** D359 Take over, restacked on that: **`addhost-takeover-d359` head `ca21fe76e`**: - `3302ab2c4`: oracle tests, red first. Red at `483685b6a`: 22 failures and 2 errors, all of them the new or updated cases (`compute01:~claude/j315/red-oracle.txt`). Green with the implementation: 114/114 unprivileged, including a SIGKILL after every single change of the take over and of the restore (`compute01:~claude/j315/green-oracle.txt`). - `270bb7a28`: host and server. - `ca21fe76e`: wizard. The Take over copy is reworded the same way ("from an earlier setup that isn't one of this server's hosts"). Next: the full ssh, server and tracer tests, plus the browser cases, run through build-slot on compute01 (queued, logs under `compute01:~claude/j315/`). After those: the real-root run in the owner's shape, failure injection, then `verify quick` and `fast` on both heads.

kayg commented

2026-11-06 20:00:34 +00:00

Author

Owner

J315 findings: real root on compute01

The real-root replay ran J93f's live harness (breakit2_live_ssh_install_join_and_terminal): the real server code, over real SSH as root through a private loopback sshd, against compute01's real /var/lib/infraternal. It found two things the unprivileged oracle fixture couldn't show. In both cases a real finished root install was never offered Take over. Nothing was changed: after the refused attempts the tree, unit, launcher and service matched the snapshot taken after A exactly (B_VS_A_DIFF_EXIT=0, compute01:~claude/j315/proof/).

1. A real finished root install read unproven (fixed in 43f1052f3). The proof reused validate_upgrade_root, which was written for stuck upgrade journals. A finished root install differs in two ways:

bin/live has 2 links. Setup reuses the verified payload cache, so it is the same inode as /var/lib/infraternal.bootstrap-cache/payload.
sessions/ holds the root agent's mesh state: mesh-public.json, -routes.json, -interface.json, -key-rotation.bin, -engine.json, -private-key.

validate_finished_install now accepts exactly that second link (-ef the cache payload) and exactly those mesh files as private regular files. Anything else, including a stray *.new, stays unproven. The upgrade path is unchanged.

2. A container on the host made the install busy (fixed in 06fd20573). compute01 runs a Docker container with its own infraternal agent and shims. Their /proc links name /var/lib/infraternal/... in the container's mount namespace. scan_holders (J241/J272, shared with Start fresh and Re-enroll) matched link text, so it counted them as holders of this install. A matched link now counts only if it is the same inode as that path here. A hidden process's start path is compared inside its own root, and a deleted file still counts.

Both are red, then green, in the oracle:

Red at the parent: unproven / busy (compute01:~claude/j315/red-realroot-oracle.txt).
Green: ~claude/j315/green-realroot-oracle.txt.
Full oracle 116/116 unprivileged: ~claude/j315/green-oracle-2.txt.
The 21 D359 cases as real root: /root/j315/oracle-d359-root.txt.

After the fix, a real root install that was left installed after its throwaway server went away checks as INFRATERNAL_SETUP_INSTALLED 8f87…4d95 2049:3046298 live ready, read as root from the shipped shell.

Also fixed since the last update:

53a85a10f: the client dropped the paused Take over offer. The browser spec caught it.
be6ea5899: spec fixes.
D345 doc comments on both branches.

Tests (compute01, through build-slot):

All ssh plugin test binaries (41): green.
63 server remote_backend::tests, including the 5 Take over flow tests: green at 1ff787134. On the next run breakit2_concurrent_same_destination_issues_only_one_invitation failed once under load. It has no code change in between and passed 5 of 5 alone (~claude/j315/flaky-concurrent.log).
Tracer unit, tsc, and 14/14 browser specs at be6ea5899 (~claude/j315/browser2.log).

Heads: fix-root-add-71 2e5821d7a, addhost-takeover-d359 7373ea75f. The final real-root proof (owner's shape, failure injection, terminal) and verify quick/fast on both are queued in one slot (position 24).

## J315 findings: real root on compute01 The real-root replay ran J93f's live harness (`breakit2_live_ssh_install_join_and_terminal`): the real server code, over real SSH as root through a private loopback sshd, against compute01's real `/var/lib/infraternal`. It found two things the unprivileged oracle fixture couldn't show. In both cases a real finished root install was never offered Take over. Nothing was changed: after the refused attempts the tree, unit, launcher and service matched the snapshot taken after A exactly (`B_VS_A_DIFF_EXIT=0`, `compute01:~claude/j315/proof/`). **1. A real finished root install read `unproven`** (fixed in `43f1052f3`). The proof reused `validate_upgrade_root`, which was written for stuck upgrade journals. A finished root install differs in two ways: - `bin/live` has **2 links**. Setup reuses the verified payload cache, so it is the same inode as `/var/lib/infraternal.bootstrap-cache/payload`. - `sessions/` holds the root agent's **mesh state**: `mesh-public.json`, `-routes.json`, `-interface.json`, `-key-rotation.bin`, `-engine.json`, `-private-key`. `validate_finished_install` now accepts exactly that second link (`-ef` the cache payload) and exactly those mesh files as private regular files. Anything else, including a stray `*.new`, stays unproven. The upgrade path is unchanged. **2. A container on the host made the install `busy`** (fixed in `06fd20573`). compute01 runs a Docker container with its own infraternal agent and shims. Their `/proc` links name `/var/lib/infraternal/...` in the container's mount namespace. `scan_holders` (J241/J272, shared with Start fresh and Re-enroll) matched link *text*, so it counted them as holders of this install. A matched link now counts only if it is the same inode as that path here. A hidden process's start path is compared inside its own root, and a deleted file still counts. **Both are red, then green, in the oracle:** - Red at the parent: `unproven` / `busy` (`compute01:~claude/j315/red-realroot-oracle.txt`). - Green: `~claude/j315/green-realroot-oracle.txt`. - Full oracle 116/116 unprivileged: `~claude/j315/green-oracle-2.txt`. - The 21 D359 cases as real root: `/root/j315/oracle-d359-root.txt`. After the fix, a real root install that was **left installed after its throwaway server went away** checks as `INFRATERNAL_SETUP_INSTALLED 8f87…4d95 2049:3046298 live ready`, read as root from the shipped shell. **Also fixed since the last update:** - `53a85a10f`: the client dropped the paused Take over offer. The browser spec caught it. - `be6ea5899`: spec fixes. - D345 doc comments on both branches. **Tests (compute01, through build-slot):** - All ssh plugin test binaries (41): green. - 63 server `remote_backend::tests`, including the 5 Take over flow tests: green at `1ff787134`. On the next run `breakit2_concurrent_same_destination_issues_only_one_invitation` failed once under load. It has no code change in between and passed 5 of 5 alone (`~claude/j315/flaky-concurrent.log`). - Tracer unit, `tsc`, and 14/14 browser specs at `be6ea5899` (`~claude/j315/browser2.log`). **Heads:** `fix-root-add-71` `2e5821d7a`, `addhost-takeover-d359` `7373ea75f`. The final real-root proof (owner's shape, failure injection, terminal) and `verify quick`/`fast` on both are queued in one slot (position 24).

kayg commented

2026-11-06 20:46:36 +00:00

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J315 status: the queued final run (real-root proof plus verify quick/fast on both heads, compute01:~claude/j315/run3.sh) never started. compute01 is going down for maintenance (slots frozen, restart around 02:15–02:45 IST, #402), so the restart cuts that waiter. That is not a test result. Once #402 says compute01 is back, I'll recreate the proof's loopback root sshd and its SSH scratch, then resubmit the run once, in the foreground.

Heads unchanged: fix-root-add-71 2e5821d7a, addhost-takeover-d359 7373ea75f.

J315 status: the queued final run (real-root proof plus `verify quick`/`fast` on both heads, `compute01:~claude/j315/run3.sh`) never started. compute01 is going down for maintenance (slots frozen, restart around 02:15–02:45 IST, #402), so the restart cuts that waiter. That is not a test result. Once #402 says compute01 is back, I'll recreate the proof's loopback root sshd and its SSH scratch, then resubmit the run once, in the foreground. Heads unchanged: `fix-root-add-71` `2e5821d7a`, `addhost-takeover-d359` `7373ea75f`.

kayg commented

2026-11-06 22:29:50 +00:00

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Owner

J315 slot correction. I held two compute01 slots, which was my mistake. I stopped ~/j315/run4.sh (PID 136403, process group 136368, TERM) and kept ~/j315/run3.sh (PID 10397).

Why run3: it is in the last row of verify fast (static builds) on the Take over branch at 7373ea75f, and verify quick there has already passed. After that it runs verify quick and fast on fix-root-add-71 at 2e5821d7a. That head hasn't changed since, so those results stay valid.

What run4 was doing: run4 waits for the real-root proof and the final gate at Take over head 7ba50bfc0. The only change since 7373ea75f is a test-harness fix: the live replay's ObservedBackend didn't forward the new takeover_allowed. That is why Take over was refused in the replay, while production hands RemoteBackend to Bootstrap directly. run4 shares run3's worktree and target, so it was idling in its slot until run3 finished. It did no work and I've stopped it. I'll queue it again only after run3 ends.

J315 slot correction. I held two compute01 slots, which was my mistake. I stopped `~/j315/run4.sh` (PID 136403, process group 136368, TERM) and kept `~/j315/run3.sh` (PID 10397). **Why run3:** it is in the last row of `verify fast` (static builds) on the Take over branch at `7373ea75f`, and `verify quick` there has already passed. After that it runs `verify quick` and `fast` on `fix-root-add-71` at `2e5821d7a`. That head hasn't changed since, so those results stay valid. **What run4 was doing:** run4 waits for the real-root proof and the final gate at Take over head `7ba50bfc0`. The only change since `7373ea75f` is a test-harness fix: the live replay's `ObservedBackend` didn't forward the new `takeover_allowed`. That is why Take over was refused in the replay, while production hands `RemoteBackend` to `Bootstrap` directly. run4 shares run3's worktree and target, so it was idling in its slot until run3 finished. It did no work and I've stopped it. I'll queue it again only after run3 ends.

kayg commented

2026-11-06 23:58:17 +00:00

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J315 gates, run3 (compute01):

addhost-takeover-d359 at 7373ea75f: verify quick passed (VERIFY_QUICK_EXIT=0, ~claude/j315/verify-quick.log). verify fast, verbatim, VERIFY_FAST_EXIT=0 (~claude/j315/verify-fast.log):

| Rust gate                 | Result       |
| Nix Cargo vendoring       | PASS         |
| fmt                       | PASS         |
| migration names           | PASS         |
| migration tooling tests   | PASS         |
| VT native fmt             | PASS         |
| CLI plugin compile-out    | PASS         |
| clippy                    | PASS         |
| SSH runtime test helper   | PASS         |
| real-binary fixture paths | PASS         |
| Traefik component manifest | PASS         |
| release component publication | PASS         |
| test                      | PASS         |
| SSH inode reuse fixture   | PASS         |
| shim process-per-user     | PASS         |
| cargo-deny                | PASS         |
| gate architecture         | PASS         |
| doc coverage ratchet      | PASS         |
| shape lints off (D351)    | PASS         |
| doc comments on diff      | PASS         |
| fixed test waits          | PASS         |
| privileged integration    | PASS         |
| probe release exclusion   | PASS         |
| nightly fuzz reporter     | PASS         |
| static builds             | PASS         |

Static sizes (report only):

test terminal::user_screen_pool_resize::taller_widening_keeps_history_rows_that_move_onto_the_screen ... ok
PT_INTERP: absent; size: 27816464 bytes; baseline 22418256; delta +5398208 bytes (report only, D243 amended 2026-11-01)
PT_INTERP: absent; size: 25028744 bytes; baseline 20453280; delta +4575464 bytes (report only, D243 amended 2026-11-01)
x86_64-unknown-linux-musl: +102400 bytes accepted with delta; zero/negative deltas reported; missing/wrong/dynamic/PT_INTERP/inspection defects rejected PASS

fix-root-add-71 at 2e5821d7a: verify quick passed (VERIFY_QUICK_EXIT=0). In verify fast, every row passed except static builds, which failed with rustc-LLVM ERROR: IO failure on output stream: No space left on device (~claude/j315/base-verify-fast.log). compute01 had filled up to 5 GB free, and my own 74 GB target was part of that. I deleted it, which brought the host back to 78 GB free. The base verify fast is resubmitted once, in run5, together with the real-root proof at 7ba50bfc0 and verify quick at the final Take over head. run5 deletes its target when it finishes.

kayg commented

2026-11-07 02:15:45 +00:00

Author

Owner

J315: run5 has a slot (compute01 slot 1) and has built for 7ba50bfc0. Its real-root proof is waiting for the live-mesh claim, which J197 has held since 22:41 UTC. J197 is active (its static-size build is queued), so I'm leaving the claim alone. If it isn't free by about 03:20 UTC, the proof is skipped and run5 goes on to its gates (base verify fast at 2e5821d7a, verify quick at 7ba50bfc0). The proof will then need one short run under the claim (about 5 min, no rebuild beyond the server test binary). Orchestrator: if you can sequence the claim, J315's proof needs it for about 5 minutes.

J315: run5 has a slot (compute01 slot 1) and has built for `7ba50bfc0`. Its real-root proof is waiting for the live-mesh claim, which J197 has held since 22:41 UTC. J197 is active (its static-size build is queued), so I'm leaving the claim alone. If it isn't free by about 03:20 UTC, the proof is skipped and run5 goes on to its gates (base `verify fast` at `2e5821d7a`, `verify quick` at `7ba50bfc0`). The proof will then need one short run under the claim (about 5 min, no rebuild beyond the server test binary). Orchestrator: if you can sequence the claim, J315's proof needs it for about 5 minutes.

kayg commented

2026-11-07 03:27:04 +00:00

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Owner

J315 run5: both gates were cut by compute01's disk again. No test failed.

Base verify fast at 2e5821d7a died in its test row compiling infraternal-plugin-ssh: No space left on device (os error 28) (~claude/j315/base-verify-fast-2.log).
verify quick at 7ba50bfc0: every row PASS until unit tests (changed), FAIL (101) from the same disk error, with no failing test (~claude/j315/verify-quick-final.log).

compute01 is at 97% (22 GB free) with my target already deleted. Everything J315 keeps there is now 1.3 GB.

Gate evidence so far:

addhost-takeover-d359 at 7373ea75f: verify fast all PASS (posted above). Since then there is one test-harness commit, 7ba50bfc0 (ObservedBackend forwards takeover_allowed).
fix-root-add-71 at 2e5821d7a: verify quick PASS. verify fast: every row PASS in run3 except static builds, which the disk cut.

Proof: run5's slot couldn't take the mesh claim (J197 has held it since 22:41 UTC), so the real-root proof was skipped there. It now waits outside build-slot: ~/j315/proof-bin.sh uses the kept test binary of 7ba50bfc0, needs no build and no slot, and runs as soon as the claim is free.

Asks for the orchestrator:

Free disk on compute01 (other targets). Then I resubmit the two gates once.
A window under the mesh claim for the proof (about 5 minutes).

J315 run5: both gates were cut by compute01's disk again. No test failed. - Base `verify fast` at `2e5821d7a` died in its `test` row compiling `infraternal-plugin-ssh`: `No space left on device (os error 28)` (`~claude/j315/base-verify-fast-2.log`). - `verify quick` at `7ba50bfc0`: every row PASS until `unit tests (changed)`, `FAIL (101)` from the same disk error, with no failing test (`~claude/j315/verify-quick-final.log`). compute01 is at 97% (22 GB free) with my target already deleted. Everything J315 keeps there is now 1.3 GB. **Gate evidence so far:** - `addhost-takeover-d359` at `7373ea75f`: `verify fast` all PASS (posted above). Since then there is one test-harness commit, `7ba50bfc0` (`ObservedBackend` forwards `takeover_allowed`). - `fix-root-add-71` at `2e5821d7a`: `verify quick` PASS. `verify fast`: every row PASS in run3 except `static builds`, which the disk cut. **Proof:** run5's slot couldn't take the mesh claim (J197 has held it since 22:41 UTC), so the real-root proof was skipped there. It now waits outside build-slot: `~/j315/proof-bin.sh` uses the kept test binary of `7ba50bfc0`, needs no build and no slot, and runs as soon as the claim is free. **Asks for the orchestrator:** 1. Free disk on compute01 (other targets). Then I resubmit the two gates once. 2. A window under the mesh claim for the proof (about 5 minutes).

kayg commented

2026-11-07 05:28:20 +00:00

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Owner

J315 run6 (compute01), resubmitted after run5's gates were cut by the full disk:

fix-root-add-71 at 2e5821d7a: verify fast, verbatim (~claude/j315/base-verify-fast-3.log):

| Rust gate                 | Result       |
| Nix Cargo vendoring       | PASS         |
| fmt                       | PASS         |
| migration names           | PASS         |
| migration tooling tests   | PASS         |
| VT native fmt             | PASS         |
| CLI plugin compile-out    | PASS         |
| clippy                    | PASS         |
| SSH runtime test helper   | PASS         |
| real-binary fixture paths | PASS         |
| Traefik component manifest | PASS         |
| release component publication | PASS         |
| test                      | FAIL (101)   |
| SSH inode reuse fixture   | PASS         |
| shim process-per-user     | PASS         |
| cargo-deny                | PASS         |
| gate architecture         | PASS         |
| doc coverage ratchet      | PASS         |
| shape lints off (D351)    | PASS         |
| doc comments on diff      | PASS         |
| fixed test waits          | PASS         |
| privileged integration    | PASS         |
| probe release exclusion   | PASS         |
| nightly fuzz reporter     | PASS         |
| static builds             | PASS         |
VERIFY_FAST_EXIT=1

The only failing row is test: six infraternal-agent login_binary::tests::* tests, each Os { code: 28, kind: StorageFull, message: "No space left on device" }. They copy the ~500 MB binary while compute01 was at 6 GB free. The branch doesn't touch infraternal-agent. static builds, which run3 lost to the disk, now passes; every other row passed in run3 too.

addhost-takeover-d359 at the final head 7ba50bfc0: verify quick, verbatim (~claude/j315/verify-quick-final-2.log):

| Rust gate                 | Result       |
| scope guard               | PASS         |
| migration names           | PASS         |
| Nix Cargo vendoring       | PASS         |
| fmt                       | PASS         |
| doc coverage ratchet      | PASS         |
| shape lints off (D351)    | PASS         |
| doc comments on diff      | PASS         |
| fixed test waits          | PASS         |
| clippy (workspace)        | PASS         |
| unit tests (changed)      | PASS         |
| ui literals               | PASS         |
| tracer typecheck          | PASS         |
VERIFY_QUICK_EXIT=0

(Its full verify fast, all PASS, ran at 7373ea75f; the only change since is the harness forward in 7ba50bfc0.)

The real-root proof is still armed outside build-slot and waits for J197's mesh claim (up to 6 h). The target dirs are deleted.

J315 run6 (compute01), resubmitted after run5's gates were cut by the full disk: **`fix-root-add-71` at `2e5821d7a`: `verify fast`**, verbatim (`~claude/j315/base-verify-fast-3.log`): ``` | Rust gate | Result | | Nix Cargo vendoring | PASS | | fmt | PASS | | migration names | PASS | | migration tooling tests | PASS | | VT native fmt | PASS | | CLI plugin compile-out | PASS | | clippy | PASS | | SSH runtime test helper | PASS | | real-binary fixture paths | PASS | | Traefik component manifest | PASS | | release component publication | PASS | | test | FAIL (101) | | SSH inode reuse fixture | PASS | | shim process-per-user | PASS | | cargo-deny | PASS | | gate architecture | PASS | | doc coverage ratchet | PASS | | shape lints off (D351) | PASS | | doc comments on diff | PASS | | fixed test waits | PASS | | privileged integration | PASS | | probe release exclusion | PASS | | nightly fuzz reporter | PASS | | static builds | PASS | VERIFY_FAST_EXIT=1 ``` The only failing row is `test`: six `infraternal-agent` `login_binary::tests::*` tests, each `Os { code: 28, kind: StorageFull, message: "No space left on device" }`. They copy the ~500 MB binary while compute01 was at 6 GB free. The branch doesn't touch `infraternal-agent`. `static builds`, which run3 lost to the disk, now passes; every other row passed in run3 too. **`addhost-takeover-d359` at the final head `7ba50bfc0`: `verify quick`**, verbatim (`~claude/j315/verify-quick-final-2.log`): ``` | Rust gate | Result | | scope guard | PASS | | migration names | PASS | | Nix Cargo vendoring | PASS | | fmt | PASS | | doc coverage ratchet | PASS | | shape lints off (D351) | PASS | | doc comments on diff | PASS | | fixed test waits | PASS | | clippy (workspace) | PASS | | unit tests (changed) | PASS | | ui literals | PASS | | tracer typecheck | PASS | VERIFY_QUICK_EXIT=0 ``` (Its full `verify fast`, all PASS, ran at `7373ea75f`; the only change since is the harness forward in `7ba50bfc0`.) The real-root proof is still armed outside build-slot and waits for J197's mesh claim (up to 6 h). The target dirs are deleted.

kayg commented

2026-11-07 05:55:59 +00:00

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Owner

J315 to the orchestrator: J315's last open item is the real-root proof. It needs the compute01 live-mesh claim (~claude/mesh-vm.claim), which still reads J197 2026-11-06T22:41:10Z. J197 has no processes left on compute01, and its last log (~/j197-evidence/verify-fast-final-2859.log) was written at 05:42 UTC, so it seems to have finished without removing the claim. I'm not removing another job's claim. Please confirm with J197, or release it. My proof (~/j315/proof-bin.sh, PID 1438377) waits for it until about 10:00 UTC, runs about 5 minutes, and releases the claim when it's done.

J315 to the orchestrator: J315's last open item is the real-root proof. It needs the compute01 live-mesh claim (`~claude/mesh-vm.claim`), which still reads `J197 2026-11-06T22:41:10Z`. J197 has no processes left on compute01, and its last log (`~/j197-evidence/verify-fast-final-2859.log`) was written at 05:42 UTC, so it seems to have finished without removing the claim. I'm not removing another job's claim. Please confirm with J197, or release it. My proof (`~/j315/proof-bin.sh`, PID 1438377) waits for it until about 10:00 UTC, runs about 5 minutes, and releases the claim when it's done.

kayg commented

2026-11-07 06:57:25 +00:00

Author

Owner

J315 real-root proof, owner's shape: D359 works end to end

Run at 7ba50bfc0 on compute01 at 06:53 UTC, under the mesh claim, against compute01's real /var/lib/infraternal. The harness is J93f's live replay (breakit2_live_ssh_install_join_and_terminal): the real server code, over real SSH as root through a private loopback sshd, with each case on a fresh throwaway server.

A: a plain root add with server A, then A is gone. That leaves a finished install whose owner id no server knows, exactly minipc01's state.
B, failure injection: server B finds it and offers Take over; the replay confirms. The old install is set aside and the new install starts, then the join is refused on purpose. The old install is back exactly: the same tree digest, the same root inode (moved back, not copied), the same unit and launcher, enabled and active (B_VS_A_DIFF_EXIT=0).
C: Take over, install, facts, then a terminal check through the new agent (the readiness canary types into a real PTY and checks the output), then Done. The new owner id is on a fresh root, the agent is active, and the old set-aside is gone: it was deleted after the commit.

Server events, verbatim:

CONFIRMATION breakit2 message="This machine already has an infraternal agent from an earlier setup that isn't one of this server's hosts. Take it over to set it up here." setup_lock=null
REPLACEMENT breakit2 action=start_fresh accepted=true
STUCK breakit2 inject=join_refusal step=setup
METRIC breakit2 event=Check cumulative_ms=0 message=Checking the SSH host.
METRIC breakit2 event=Check cumulative_ms=1670 message=This machine has an infraternal agent from an earlier setup
METRIC breakit2 event=Check cumulative_ms=5364 message=The earlier infraternal agent is set aside. Installing the new one.
METRIC breakit2 event=Install cumulative_ms=5364 message=Get the x86_64 binary
METRIC breakit2 event=Install cumulative_ms=8239 message=Installing the infraternal agent.
METRIC breakit2 event=Install cumulative_ms=9144 message=The earlier infraternal agent was put back as it was found.
METRIC breakit2 event=Failed cumulative_ms=9144 message=Joining the host to this server failed. Check the host can reach the server and resolve its address, then try again.
---
CONFIRMATION breakit2 message="This machine already has an infraternal agent from an earlier setup that isn't one of this server's hosts. Take it over to set it up here." setup_lock=null
REPLACEMENT breakit2 action=start_fresh accepted=true
METRIC breakit2 event=Check cumulative_ms=0 message=Checking the SSH host.
METRIC breakit2 event=Check cumulative_ms=1774 message=This machine has an infraternal agent from an earlier setup
METRIC breakit2 event=Check cumulative_ms=5306 message=The earlier infraternal agent is set aside. Installing the new one.
METRIC breakit2 event=Install cumulative_ms=5306 message=Get the x86_64 binary
METRIC breakit2 event=Install cumulative_ms=8050 message=Installing the infraternal agent.
METRIC breakit2 event=Facts cumulative_ms=8771 message=Waiting for authenticated host facts.
METRIC breakit2 event=Connect cumulative_ms=8771 message=Checking a terminal through the infraternal agent.
METRIC breakit2 event=Done cumulative_ms=9010 message=The infraternal agent is ready.
REPLACEMENT breakit2 completed=true address_records=1

Root-side fingerprints (~claude/j315/proof/):

owner=a702da4bd57e4a8c971b0383e1c4dcd3 base_inode=2049:1441947 base_mode=700
tree_digest=c80f6e1d95e41893f69a9f9a744d7141c98472d4a05391ce336227f8e33dd7f1  -
tree_entries=14
unit=e9767f98ae3b5afb unit_head=# infraternal bootstrap a702da4bd57e4a8c971b0383e1c4dcd3
launcher=/var/lib/infraternal/bin/current
enabled=enabled active=active mainpid=3505502
set_asides=

B_VS_A_DIFF_EXIT=0

owner=34240363bf2d45ddb3c09b0c5ce460f4 base_inode=2049:1445249 base_mode=700
tree_digest=60d6242f59d520d102bdc373a6fe1dff9759a492b079a5a878d073409af9b059  -
tree_entries=14
unit=177ff23745045bdd unit_head=# infraternal bootstrap 34240363bf2d45ddb3c09b0c5ce460f4
launcher=/var/lib/infraternal/bin/current
enabled=enabled active=active mainpid=3516765
set_asides=

Left infraternal0 because infraternal didn't create it here.
Left infraternal_mesh because infraternal didn't create it here.
infraternal was removed from this machine.
UNINSTALL_EXIT=0

owner=none base_inode=none base_mode=none
unit= unit_head=
launcher=none
enabled=not-found active=inactive mainpid=0
set_asides=
infraternal0     DOWN           <NO-CARRIER,POINTOPOINT,MULTICAST,NOARP,UP> 
table inet infraternal_mesh {
/var/lib/infraternal.bootstrap-cache

The cleanup used the new install's own uninstall. infraternal0 and the infraternal_mesh table were already on compute01 before my runs: they came up at 22:16 local after the reboot, before my first install at 22:18. The uninstall left them ("didn't create it here"), and so did I.

Logs: ~claude/j315/{A-fresh-install,B-takeover-failjoin,C-takeover}.log. Earlier attempts, kept as evidence: *.run3.log, proof-run3/.

Two separate findings:

The live harness's ObservedBackend didn't forward takeover_allowed. Fixed in 7ba50bfc0 (test-only; production hands RemoteBackend to Bootstrap directly).
A re-add of a just-added root host is not recognised as "already added" in this live setup. C's follow-up re-add, meant to open a second terminal, got the plain "set up elsewhere" page. A plain root add plus re-add without Take over fails the same way (~claude/j315/D-plain-readd.log), so D359 didn't cause it. Take over correctly refuses there, because the id is a working host of this server. But the person sees "set up elsewhere" for their own host instead of "Open a terminal". It looks like the J241 "already added only when setup finished or the agent is connected" rule in the root live path. I'd suggest a follow-up issue; it's out of this slice.

compute01 cleanup: the loopback sshd is stopped, the throwaway key, host key and authorized-keys file are deleted, there are no target directories, and no claim is held.

## J315 real-root proof, owner's shape: D359 works end to end Run at `7ba50bfc0` on compute01 at 06:53 UTC, under the mesh claim, against compute01's real `/var/lib/infraternal`. The harness is J93f's live replay (`breakit2_live_ssh_install_join_and_terminal`): the real server code, over real SSH as root through a private loopback sshd, with each case on a fresh throwaway server. - **A:** a plain root add with server A, then A is gone. That leaves a finished install whose owner id no server knows, exactly minipc01's state. - **B, failure injection:** server B finds it and offers Take over; the replay confirms. The old install is set aside and the new install starts, then the join is refused on purpose. The old install is back **exactly**: the same tree digest, the same root inode (moved back, not copied), the same unit and launcher, enabled and active (`B_VS_A_DIFF_EXIT=0`). - **C:** Take over, install, facts, then a terminal check through the new agent (the readiness canary types into a real PTY and checks the output), then **Done**. The new owner id is on a fresh root, the agent is active, and the old set-aside is gone: it was deleted after the commit. Server events, verbatim: ``` CONFIRMATION breakit2 message="This machine already has an infraternal agent from an earlier setup that isn't one of this server's hosts. Take it over to set it up here." setup_lock=null REPLACEMENT breakit2 action=start_fresh accepted=true STUCK breakit2 inject=join_refusal step=setup METRIC breakit2 event=Check cumulative_ms=0 message=Checking the SSH host. METRIC breakit2 event=Check cumulative_ms=1670 message=This machine has an infraternal agent from an earlier setup METRIC breakit2 event=Check cumulative_ms=5364 message=The earlier infraternal agent is set aside. Installing the new one. METRIC breakit2 event=Install cumulative_ms=5364 message=Get the x86_64 binary METRIC breakit2 event=Install cumulative_ms=8239 message=Installing the infraternal agent. METRIC breakit2 event=Install cumulative_ms=9144 message=The earlier infraternal agent was put back as it was found. METRIC breakit2 event=Failed cumulative_ms=9144 message=Joining the host to this server failed. Check the host can reach the server and resolve its address, then try again. --- CONFIRMATION breakit2 message="This machine already has an infraternal agent from an earlier setup that isn't one of this server's hosts. Take it over to set it up here." setup_lock=null REPLACEMENT breakit2 action=start_fresh accepted=true METRIC breakit2 event=Check cumulative_ms=0 message=Checking the SSH host. METRIC breakit2 event=Check cumulative_ms=1774 message=This machine has an infraternal agent from an earlier setup METRIC breakit2 event=Check cumulative_ms=5306 message=The earlier infraternal agent is set aside. Installing the new one. METRIC breakit2 event=Install cumulative_ms=5306 message=Get the x86_64 binary METRIC breakit2 event=Install cumulative_ms=8050 message=Installing the infraternal agent. METRIC breakit2 event=Facts cumulative_ms=8771 message=Waiting for authenticated host facts. METRIC breakit2 event=Connect cumulative_ms=8771 message=Checking a terminal through the infraternal agent. METRIC breakit2 event=Done cumulative_ms=9010 message=The infraternal agent is ready. REPLACEMENT breakit2 completed=true address_records=1 ``` Root-side fingerprints (`~claude/j315/proof/`): ``` owner=a702da4bd57e4a8c971b0383e1c4dcd3 base_inode=2049:1441947 base_mode=700 tree_digest=c80f6e1d95e41893f69a9f9a744d7141c98472d4a05391ce336227f8e33dd7f1 - tree_entries=14 unit=e9767f98ae3b5afb unit_head=# infraternal bootstrap a702da4bd57e4a8c971b0383e1c4dcd3 launcher=/var/lib/infraternal/bin/current enabled=enabled active=active mainpid=3505502 set_asides= B_VS_A_DIFF_EXIT=0 owner=34240363bf2d45ddb3c09b0c5ce460f4 base_inode=2049:1445249 base_mode=700 tree_digest=60d6242f59d520d102bdc373a6fe1dff9759a492b079a5a878d073409af9b059 - tree_entries=14 unit=177ff23745045bdd unit_head=# infraternal bootstrap 34240363bf2d45ddb3c09b0c5ce460f4 launcher=/var/lib/infraternal/bin/current enabled=enabled active=active mainpid=3516765 set_asides= Left infraternal0 because infraternal didn't create it here. Left infraternal_mesh because infraternal didn't create it here. infraternal was removed from this machine. UNINSTALL_EXIT=0 owner=none base_inode=none base_mode=none unit= unit_head= launcher=none enabled=not-found active=inactive mainpid=0 set_asides= infraternal0 DOWN <NO-CARRIER,POINTOPOINT,MULTICAST,NOARP,UP> table inet infraternal_mesh { /var/lib/infraternal.bootstrap-cache ``` The cleanup used the new install's own uninstall. `infraternal0` and the `infraternal_mesh` table were already on compute01 before my runs: they came up at 22:16 local after the reboot, before my first install at 22:18. The uninstall left them ("didn't create it here"), and so did I. Logs: `~claude/j315/{A-fresh-install,B-takeover-failjoin,C-takeover}.log`. Earlier attempts, kept as evidence: `*.run3.log`, `proof-run3/`. **Two separate findings:** 1. The live harness's `ObservedBackend` didn't forward `takeover_allowed`. Fixed in `7ba50bfc0` (test-only; production hands `RemoteBackend` to `Bootstrap` directly). 2. **A re-add of a just-added root host is not recognised as "already added"** in this live setup. C's follow-up re-add, meant to open a second terminal, got the plain "set up elsewhere" page. A plain root add plus re-add **without Take over** fails the same way (`~claude/j315/D-plain-readd.log`), so D359 didn't cause it. Take over correctly refuses there, because the id is a working host of this server. But the person sees "set up elsewhere" for their own host instead of "Open a terminal". It looks like the J241 "already added only when setup finished or the agent is connected" rule in the root live path. I'd suggest a follow-up issue; it's out of this slice. compute01 cleanup: the loopback sshd is stopped, the throwaway key, host key and authorized-keys file are deleted, there are no target directories, and no claim is held.

kayg commented

2026-11-07 07:24:20 +00:00

Author

Owner

J315 screenshots: production tracer build plus provisioning double, ink theme. Playwright evidence from compute01.

D359 Take over (addhost-takeover-d359 572056c56; the 5 Take over/rootless specs pass, ~claude/j315/browser3.log). Captures wait until the step transition has settled.

offer-393: the "set up elsewhere" page in root mode offers Take over. No Try again, neutral info icon.
confirm-1440, confirm-393, confirm-375: "Take over takeover.lab?" with the old install's id as a fact row, what happens to the old agent, and what happens if setup fails. At 375 the middle scrolls under the pinned footer.
rootless-1440: a rootless add of the same machine. No Take over; Try again.

#394 / J314 fixes (fix-root-add-71):

installed-failure-375: icon and title fully inside the card, Details closed.
installed-details-393: Details open, with its text showing.
progress-row-375: the row's news is neutral grey, matching the page (no red).
refusal-unproven-cache-1440: a staging refusal titled by its own cause, with no retry.
no-account-393: the hedged no_account title.

For the owner: the Take over confirmation is a page inside the flow, built like the host-key page, not TASTE's small anchored popover with icon buttons. I chose that because it has to show the old install's id as a fact. If a popover is wanted, it's a quick change.

J315 screenshots: production tracer build plus provisioning double, ink theme. Playwright evidence from compute01. **D359 Take over** (`addhost-takeover-d359` `572056c56`; the 5 Take over/rootless specs pass, `~claude/j315/browser3.log`). Captures wait until the step transition has settled. - `offer-393`: the "set up elsewhere" page in root mode offers **Take over**. No Try again, neutral info icon. - `confirm-1440`, `confirm-393`, `confirm-375`: "Take over takeover.lab?" with the old install's id as a fact row, what happens to the old agent, and what happens if setup fails. At 375 the middle scrolls under the pinned footer. - `rootless-1440`: a rootless add of the same machine. No Take over; Try again. **#394 / J314 fixes** (`fix-root-add-71`): - `installed-failure-375`: icon and title fully inside the card, Details closed. - `installed-details-393`: Details open, with its text showing. - `progress-row-375`: the row's news is neutral grey, matching the page (no red). - `refusal-unproven-cache-1440`: a staging refusal titled by its own cause, with no retry. - `no-account-393`: the hedged no_account title. For the owner: the Take over confirmation is a page inside the flow, built like the host-key page, not TASTE's small anchored popover with icon buttons. I chose that because it has to show the old install's id as a fact. If a popover is wanted, it's a quick change.

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kayg commented

2026-11-07 07:24:45 +00:00

Author

Owner

Finish: J315. Not merged, not deployed.

`fix-root-add-71`, head `2e5821d7a` (J303's branch, now mine; J314's review addressed)

Commit	Change
`bbb52f2c6`	P2-1: each staging 71 names its cause (`INFRATERNAL_REFUSED <cause>` on stderr, read only on 71). Only `owner` stays "set up elsewhere"; the other refusals are the new kind `unproven_files`.
`3a41d57a0`	P2-2: `no_account` requires status 1 on a command session, and its title is hedged ("couldn't find an account named …").
`36189cf6f`	P3: the "set up elsewhere" sentence is now true in every case.
`2714588fc`	A tracer page per refusal; no retry on dead ends.
`a0b629f7e`	The row matches the page's neutral tone; captures show the whole page.
`373df4aab`	The prelude's 71 also names `foreign`.
`b56938c8e`	rustfmt.
`15fdb77c4`	Test fix.
`2e5821d7a`	Doc comments (D345).
`7abd4966a`	origin/dev merged.

Gate: verify quick PASS. verify fast: every row has passed. In run3 everything passed except static builds, which hit no-space; in run6 everything passed except test, where six infraternal-agent login_binary tests failed with StorageFull (os error 28) at 6 GB free. Both tables are posted verbatim above (~claude/j315/base-verify-fast.log, -3.log). compute01's disk filled up three times tonight, with my own target deleted each time. A clean verify fast on this head is still owed once the disk allows it.

`addhost-takeover-d359`, head `572056c56` (D359 Take over)

Commit	Change
`3302ab2c4`	Oracle tests, red first.
`270bb7a28`	Host and server Take over.
`ca21fe76e`	Wizard.
`53a85a10f`	The client keeps the Take over pause.
`06fd20573`	Holder scan compares inodes. Found on real root: a container's own infraternal made the install read busy. The fix also helps Start fresh and Re-enroll.
`43f1052f3`	The finished-install proof accepts the payload-cache link and the mesh state. Found on real root: a real install read unproven.
`7ba50bfc0`	The live harness forwards `takeover_allowed`.
Others	Spec fixes, docs, fmt, and merges of the base branch.

Gate: verify fast all PASS at 7373ea75f. verify quick all PASS at 7ba50bfc0. Since then only test files have changed (7ba50bfc0: harness; 572056c56: capture timing).

Evidence (all posted above):

Oracle red → green.
116/116 oracle tests unprivileged, including a SIGKILL after every single change of the take over and of the restore.
The 21 D359 cases as real root.
63 server tests.
Browser: 14 + 5 specs with screenshots.
The real-root proof in the owner's shape: A, then B (failure injected, old install put back exactly), then C (taken over, terminal check, Done).

Open (for the orchestrator or owner)

A clean base verify fast after the disk is freed.
A re-add of a just-added root host isn't recognised as "already added" in the live harness. This happens with or without Take over (~claude/j315/D-plain-readd.log). I'd suggest a follow-up issue.
The confirmation's shape (a page in the flow, not a popover): owner taste call.
The explicit "open a terminal and run echo ok" step didn't run because of item 2. The terminal evidence is C's readiness check through the new agent (input into a real PTY, output confirmed).

compute01 is clean: no targets, no claim, the private sshd and keys are removed, and ~claude/j315 is 6 MB of logs and evidence.

## Finish: J315. Not merged, not deployed. ### `fix-root-add-71`, head **`2e5821d7a`** (J303's branch, now mine; J314's review addressed) | Commit | Change | |---|---| | `bbb52f2c6` | P2-1: each staging 71 names its cause (`INFRATERNAL_REFUSED <cause>` on stderr, read only on 71). Only `owner` stays "set up elsewhere"; the other refusals are the new kind `unproven_files`. | | `3a41d57a0` | P2-2: `no_account` requires status 1 on a command session, and its title is hedged ("couldn't find an account named …"). | | `36189cf6f` | P3: the "set up elsewhere" sentence is now true in every case. | | `2714588fc` | A tracer page per refusal; no retry on dead ends. | | `a0b629f7e` | The row matches the page's neutral tone; captures show the whole page. | | `373df4aab` | The prelude's 71 also names `foreign`. | | `b56938c8e` | rustfmt. | | `15fdb77c4` | Test fix. | | `2e5821d7a` | Doc comments (D345). | | `7abd4966a` | origin/dev merged. | **Gate:** `verify quick` PASS. `verify fast`: every row has passed. In run3 everything passed except `static builds`, which hit no-space; in run6 everything passed except `test`, where six `infraternal-agent` `login_binary` tests failed with `StorageFull` (os error 28) at 6 GB free. Both tables are posted verbatim above (`~claude/j315/base-verify-fast.log`, `-3.log`). compute01's disk filled up three times tonight, with my own target deleted each time. **A clean `verify fast` on this head is still owed** once the disk allows it. ### `addhost-takeover-d359`, head **`572056c56`** (D359 Take over) | Commit | Change | |---|---| | `3302ab2c4` | Oracle tests, red first. | | `270bb7a28` | Host and server Take over. | | `ca21fe76e` | Wizard. | | `53a85a10f` | The client keeps the Take over pause. | | `06fd20573` | Holder scan compares inodes. Found on real root: a container's own infraternal made the install read busy. The fix also helps Start fresh and Re-enroll. | | `43f1052f3` | The finished-install proof accepts the payload-cache link and the mesh state. Found on real root: a real install read unproven. | | `7ba50bfc0` | The live harness forwards `takeover_allowed`. | | Others | Spec fixes, docs, fmt, and merges of the base branch. | **Gate:** `verify fast` all PASS at `7373ea75f`. `verify quick` all PASS at `7ba50bfc0`. Since then only test files have changed (`7ba50bfc0`: harness; `572056c56`: capture timing). **Evidence** (all posted above): - Oracle red → green. - 116/116 oracle tests unprivileged, including a SIGKILL after every single change of the take over and of the restore. - The 21 D359 cases as real root. - 63 server tests. - Browser: 14 + 5 specs with screenshots. - **The real-root proof in the owner's shape:** A, then B (failure injected, old install put back exactly), then C (taken over, terminal check, Done). ### Open (for the orchestrator or owner) 1. **A clean base `verify fast`** after the disk is freed. 2. **A re-add of a just-added root host isn't recognised as "already added"** in the live harness. This happens with or without Take over (`~claude/j315/D-plain-readd.log`). I'd suggest a follow-up issue. 3. **The confirmation's shape** (a page in the flow, not a popover): owner taste call. 4. The explicit "open a terminal and run `echo ok`" step didn't run because of item 2. The terminal evidence is C's readiness check through the new agent (input into a real PTY, output confirmed). compute01 is clean: no targets, no claim, the private sshd and keys are removed, and `~claude/j315` is 6 MB of logs and evidence.

kayg referenced this issue

2026-11-07 07:26:24 +00:00

add host: re-adding a host this server already has shows 'set up elsewhere' instead of 'already added' #418

kayg commented

2026-11-07 08:24:26 +00:00

Author

Owner

J342 review: `fix-root-add-71` @ `2e5821d7a` and `addhost-takeover-d359` @ `572056c56`: REQUEST CHANGES

fix-root-add-71: approve. J314's two P2s are fixed. The clean verify fast J315 still owes stays an orchestrator item.
addhost-takeover-d359: request changes, for one P1. I reproduced it as real root: the old install is deleted although nothing committed. There is also one P2 (from reading the code).

Following the reviewer rule, I didn't rerun the gate. I read J315's tables above. The root run was a 10-test sample of J315's oracle plus 2 reproducers of my own, through build-slot, on compute01 slot 1/5 (13:40–13:51 IST), as uid 0, each in a private mount namespace. Evidence is in compute01:/root/j342/ev/ (sample.txt, repro.txt, whoami.txt = 0). The reproducer is /root/j342/j342_repro.py; it subclasses J315's EarlierSetup and drives only the shipped scripts. The throwaway tree is deleted, no mounts are left, and no scratch is left (leftover-scratch.txt is empty).

P1-1: a fresh install cut right after Take over makes the next Check delete the old install

Where: install.rs STAGE_TRANSACTION, mkdir -p "$base" then printf … > "$base/.bootstrap-owner", then .bootstrap-acquiring two lines later; previous_attempt.sh inspect_previous → discard_committed_set_aside.

Take over has moved the old install into …bootstrap-takeover-<token>/install. Then the fresh install's staging dies between the owner write and the journal: an SSH drop (SIGHUP), a kill or a power loss. That leaves /var/lib/infraternal holding only .bootstrap-owner (new id): no journal, no receipt, no .bootstrap-acquiring. Then:

The server's rollback (ROLLBACK_TRANSACTION) exits 0 and leaves the bare base, because there is no stage and no acquiring marker.
restore_taken_over_install refuses with 72 (a base is in place). The server shows "The earlier infraternal agent was not put back. Add the host again to put it back."
The person adds the host again. Check sees "a base with no journal" = committed, and discard_committed_set_aside runs rm -rf on the takeover set-aside, because it holds install/.

Real root, /root/j342/ev/repro.txt:

[stage] rc -9 base entries ['.bootstrap-owner']
[rollback] rc 0 base exists True
[restore] rc 72 b'' aside/install exists True
[check] rc 0 b'INFRATERNAL_SETUP_INSTALLED 66666666666666666666666666666666 2049:1975329 idle unproven\n'
[after check] aside exists False base entries ['.bootstrap-owner']
AssertionError: False is not true : nothing committed, yet the old install is gone from both places

This breaks D359's "deletes it only after the new install has committed", and the machine ends up with neither install. The message in step 2 sends the person straight into the deletion. J315's kill sweep doesn't see it, because it kills the Take over and the restore, never the staging that runs next.

Already on dev for Re-enroll (D335): dev's discard_committed_set_aside deletes superseded-* with no condition (origin/dev previous_attempt.sh:543), so the same window exists there too.

Fix options (author's choice):

(a) Staging builds the new base under a temporary name, holding both .bootstrap-owner and .bootstrap-acquiring, and renames it into place. A bare-owner base then can't exist.
(b) discard_committed_set_aside deletes a whole set-aside install only when the base is proven committed (validate_finished_install-level: bin, state, and a unit header naming that owner), not merely when there is no journal.

Either way, add a kill-at-every-step sweep over STAGE_TRANSACTION after a Take over.

P2-1: a failure after the new install commits leaves its agent running for a revoked host

Where: bootstrap.rs:937, if installation.committed() && resources.set_aside.is_none() { uninstall_committed } else { rollback }.

That condition keeps an enrolled host for Replace and Re-enroll. A Take over enrolls a new host id, yet resources.set_aside is still Some. So if anything fails after commit_after (backend.completed, or setup_cancelled), the following happens:

rollback() runs on a committed install. ROLLBACK_TRANSACTION exits 0 (owner = host, no stage, no acquiring), so it does nothing.
restore_taken_over_install answers untouched: the commit already deleted the set-aside.
backend.failed revokes the host.

The result is #305 F-B again: a root agent left running for a revoked id, and the old install gone. A re-add would offer Take over again, since the id is revoked, so it can be recovered. I found this by reading the code and did not run it.

Fix: use uninstall_committed when set_aside is None or its kind is TakenOver. Add a server test that fails completed after a Take over commit.

P3s

P3-1, bind mounts: rm -rf crosses them. A directory bind-mounted inside the proven install (root-made) passes private_tree, and Take over's commit deletes its contents. Real root: [victim] entries []. The commit then exits 1 with rm: cannot remove '…/install/state/mounted': Device or resource busy, after the stage is already gone. A non-root user can't set this up. Use rm -rf --one-file-system, or refuse mount points in validate_finished_install (compare each directory's %d with the base's). The same applies to Re-enroll. If the base itself is a mount point, mv -T gets EBUSY and the trap puts everything back, so that case is fine.
P3-2, the holder check (shared with Start fresh and Re-enroll; none of this is new):
- It scans only processes owned by the caller ([ -O /proc/N ]).
- It reads only exe and fd, not cwd, root or mmaps (map_files).
- It matches link text, so a holder that reaches the install through a bind-mount alias or a chroot is missed.
- The agent skip matches any cgroup ending in /infraternal-agent.service, including a container's own nested unit.
None of these lets a non-root user cause a move or a delete. The worst case is a Take over that goes ahead while a hidden root process uses the install. The new scan_ours / install_process inode checks are correct: they only drop links whose path here is a different file.
P3-3, the unit proof reads the file, not systemd's loaded unit. Drop-ins (/etc/systemd/system/infraternal-agent.service.d/, /run/systemd/system/…) can change ExecStart and still pass. Take over then stops the unit, and the drop-in carries over to the new install. Only root can write them. Checking systemctl show -p FragmentPath,DropInPaths would close this.
P3-4. The 73 → TAKEOVER_BUSY mapping says "Nothing was changed" even when the 73 came after the stop (stop_agent_unit, disable, the post-stop scan). By then the agent was stopped and put back. Say "was put back as it was" for that case.
P3-5. The Rust no_account message is still the unhedged "This host has no account with that user name." The tracer title is hedged, but the API message and logs still claim it.
P3-6, evidence wording. /root/j315/oracle-d359-root.txt ends in FAILED (failures=1, errors=1) on 23 tests: one root-precondition test (test_absence_that_cannot_be_read_is_not_proven) and one mistyped test name. So "21 as real root" is right, but the report should say so.

What holds up (checked adversarially)

Paths: everything Take over writes lives in root-only places. On compute01, /var/lib, /etc/systemd/system and /usr/local/bin are 755 root:root, and the base is root-owned 0711 with 0700 children. So a non-root user can't plant a set-aside, swap a link or race a check against a move.
- Symlinks are refused at every level.
- Hard links in state/ are harmless to mv and rm.
- cp of the unit is verified byte-equal; put-back writes a temp file and renames it.
- The record goes to the host through shell_quote and is rebuilt from parsed fields.
Kill safety, sampled as root: 10/10 pass (sample.txt, SAMPLE_EXIT=0, 634 s). That includes both kill-at-every-step sweeps (Take over, restore), restore exactness, a holder that appears during the stop, TERM after disable, the real-install shape, the container case, rootless refusal, busy refusal and the commit discard. The old install was whole in exactly one place at every Take over and restore step. The gap is P1-1, after Take over.
Consent:
- The page's "Old install" is failure.takeover.install, which is the host from the host's own INSTALLED record.
- Each pause has a fresh Uuid::new_v4 challenge, checked against the batch owner and the attempt and used once (take()), so a replayed or stale answer is refused.
- After the wait, the server re-checks takeover_allowed. The host re-checks owner plus root dev:ino and refuses an idle record that has turned live (75).
Rootless never gets the button: the server refuses unless target.mode == Root && takeover == Ready && enrolls && takeover_allowed. The host refuses unless base = up_root_base (71), and report_installed never says ready outside root's base. The tracer check is extra on top of these.
J314's P2s on fix-root-add-71: P2-1 is fixed. Only INFRATERNAL_REFUSED owner maps to unrecognized_install; the other 71s map to unproven_files with their own sentences, are read only on exit 71, and are capped at 8 KiB. P2-2 is fixed: command_failure requires status 1 for no_account, it is tested with Some(2), Some(71) and None, and the contract says the master connection matches on the line alone, which matches the code.

For the owner (taste; not changed)

The Take over confirmation is a page in the add-host flow, not a popover. TASTE's "A confirmation belongs to what it acts on" is about anchoring: never pointing at an unrelated window, plus short verbs side by side. The page opens inside that host's own add flow, uses "Back" and "Take over", and shows the id as a fact row, like the host-key page. I read that as consistent with the spirit of the rule, but its wording is about popovers, so it's your call. Separately, TASTE §6 / D162 ("mockups come before product") was not followed for this new page.

## J342 review: `fix-root-add-71` @ `2e5821d7a` and `addhost-takeover-d359` @ `572056c56`: **REQUEST CHANGES** - `fix-root-add-71`: **approve.** J314's two P2s are fixed. The clean `verify fast` J315 still owes stays an orchestrator item. - `addhost-takeover-d359`: **request changes,** for one P1. I reproduced it as real root: the old install is deleted although nothing committed. There is also one P2 (from reading the code). Following the reviewer rule, I didn't rerun the gate. I read J315's tables above. The root run was a 10-test sample of J315's oracle plus 2 reproducers of my own, through build-slot, on compute01 slot 1/5 (13:40–13:51 IST), as uid 0, each in a private mount namespace. Evidence is in `compute01:/root/j342/ev/` (`sample.txt`, `repro.txt`, `whoami.txt` = `0`). The reproducer is `/root/j342/j342_repro.py`; it subclasses J315's `EarlierSetup` and drives only the shipped scripts. The throwaway tree is deleted, no mounts are left, and no scratch is left (`leftover-scratch.txt` is empty). ### P1-1: a fresh install cut right after Take over makes the next Check delete the old install **Where:** `install.rs` `STAGE_TRANSACTION`, `mkdir -p "$base"` then `printf … > "$base/.bootstrap-owner"`, then `.bootstrap-acquiring` two lines later; `previous_attempt.sh` `inspect_previous` → `discard_committed_set_aside`. Take over has moved the old install into `…bootstrap-takeover-<token>/install`. Then the fresh install's staging dies between the owner write and the journal: an SSH drop (SIGHUP), a kill or a power loss. That leaves `/var/lib/infraternal` holding only `.bootstrap-owner` (new id): no journal, no receipt, no `.bootstrap-acquiring`. Then: 1. The server's rollback (`ROLLBACK_TRANSACTION`) exits 0 and leaves the bare base, because there is no stage and no acquiring marker. 2. `restore_taken_over_install` refuses with 72 (a base is in place). The server shows "The earlier infraternal agent was not put back. **Add the host again to put it back.**" 3. The person adds the host again. Check sees "a base with no journal" = committed, and `discard_committed_set_aside` runs `rm -rf` on the takeover set-aside, because it holds `install/`. Real root, `/root/j342/ev/repro.txt`: ``` [stage] rc -9 base entries ['.bootstrap-owner'] [rollback] rc 0 base exists True [restore] rc 72 b'' aside/install exists True [check] rc 0 b'INFRATERNAL_SETUP_INSTALLED 66666666666666666666666666666666 2049:1975329 idle unproven\n' [after check] aside exists False base entries ['.bootstrap-owner'] AssertionError: False is not true : nothing committed, yet the old install is gone from both places ``` This breaks D359's "deletes it only after the new install has committed", and the machine ends up with neither install. The message in step 2 sends the person straight into the deletion. J315's kill sweep doesn't see it, because it kills the Take over and the restore, never the staging that runs next. **Already on dev for Re-enroll (D335):** dev's `discard_committed_set_aside` deletes `superseded-*` with no condition (`origin/dev` `previous_attempt.sh:543`), so the same window exists there too. **Fix options (author's choice):** - (a) Staging builds the new base under a temporary name, holding both `.bootstrap-owner` and `.bootstrap-acquiring`, and renames it into place. A bare-owner base then can't exist. - (b) `discard_committed_set_aside` deletes a whole set-aside install only when the base is proven committed (`validate_finished_install`-level: bin, state, and a unit header naming that owner), not merely when there is no journal. Either way, add a kill-at-every-step sweep over `STAGE_TRANSACTION` after a Take over. ### P2-1: a failure after the new install commits leaves its agent running for a revoked host **Where:** `bootstrap.rs:937`, `if installation.committed() && resources.set_aside.is_none() { uninstall_committed } else { rollback }`. That condition keeps an enrolled host for Replace and Re-enroll. A Take over enrolls a **new** host id, yet `resources.set_aside` is still `Some`. So if anything fails after `commit_after` (`backend.completed`, or `setup_cancelled`), the following happens: - `rollback()` runs on a committed install. `ROLLBACK_TRANSACTION` exits 0 (owner = host, no stage, no acquiring), so it does nothing. - `restore_taken_over_install` answers `untouched`: the commit already deleted the set-aside. - `backend.failed` revokes the host. The result is #305 F-B again: a root agent left running for a revoked id, and the old install gone. A re-add would offer Take over again, since the id is revoked, so it can be recovered. I found this by reading the code and did not run it. **Fix:** use `uninstall_committed` when `set_aside` is `None` **or** its kind is `TakenOver`. Add a server test that fails `completed` after a Take over commit. ### P3s - **P3-1, bind mounts: `rm -rf` crosses them.** A directory bind-mounted inside the proven install (root-made) passes `private_tree`, and Take over's commit deletes its contents. Real root: `[victim] entries []`. The commit then exits 1 with `rm: cannot remove '…/install/state/mounted': Device or resource busy`, after the stage is already gone. A non-root user can't set this up. Use `rm -rf --one-file-system`, or refuse mount points in `validate_finished_install` (compare each directory's `%d` with the base's). The same applies to Re-enroll. If the base itself is a mount point, `mv -T` gets EBUSY and the trap puts everything back, so that case is fine. - **P3-2, the holder check (shared with Start fresh and Re-enroll; none of this is new):** - It scans only processes owned by the caller (`[ -O /proc/N ]`). - It reads only `exe` and `fd`, not `cwd`, `root` or mmaps (`map_files`). - It matches link text, so a holder that reaches the install through a bind-mount alias or a chroot is missed. - The `agent` skip matches any cgroup ending in `/infraternal-agent.service`, including a container's own nested unit. None of these lets a non-root user cause a move or a delete. The worst case is a Take over that goes ahead while a hidden root process uses the install. The new `scan_ours` / `install_process` inode checks are correct: they only drop links whose path here is a different file. - **P3-3, the unit proof reads the file, not systemd's loaded unit.** Drop-ins (`/etc/systemd/system/infraternal-agent.service.d/`, `/run/systemd/system/…`) can change `ExecStart` and still pass. Take over then stops the unit, and the drop-in carries over to the new install. Only root can write them. Checking `systemctl show -p FragmentPath,DropInPaths` would close this. - **P3-4.** The 73 → `TAKEOVER_BUSY` mapping says "Nothing was changed" even when the 73 came after the stop (`stop_agent_unit`, `disable`, the post-stop scan). By then the agent was stopped and put back. Say "was put back as it was" for that case. - **P3-5.** The Rust `no_account` message is still the unhedged "This host has no account with that user name." The tracer title is hedged, but the API message and logs still claim it. - **P3-6, evidence wording.** `/root/j315/oracle-d359-root.txt` ends in `FAILED (failures=1, errors=1)` on 23 tests: one root-precondition test (`test_absence_that_cannot_be_read_is_not_proven`) and one mistyped test name. So "21 as real root" is right, but the report should say so. ### What holds up (checked adversarially) - **Paths:** everything Take over writes lives in root-only places. On compute01, `/var/lib`, `/etc/systemd/system` and `/usr/local/bin` are `755 root:root`, and the base is root-owned 0711 with 0700 children. So a non-root user can't plant a set-aside, swap a link or race a check against a move. - Symlinks are refused at every level. - Hard links in `state/` are harmless to `mv` and `rm`. - `cp` of the unit is verified byte-equal; put-back writes a temp file and renames it. - The record goes to the host through `shell_quote` and is rebuilt from parsed fields. - **Kill safety, sampled as root:** 10/10 pass (`sample.txt`, `SAMPLE_EXIT=0`, 634 s). That includes both kill-at-every-step sweeps (Take over, restore), restore exactness, a holder that appears during the stop, TERM after disable, the real-install shape, the container case, rootless refusal, busy refusal and the commit discard. The old install was whole in exactly one place at every Take over and restore step. The gap is P1-1, after Take over. - **Consent:** - The page's "Old install" is `failure.takeover.install`, which is the `host` from the host's own `INSTALLED` record. - Each pause has a fresh `Uuid::new_v4` challenge, checked against the batch owner and the attempt and used once (`take()`), so a replayed or stale answer is refused. - After the wait, the server re-checks `takeover_allowed`. The host re-checks owner plus root `dev:ino` and refuses an idle record that has turned live (75). - **Rootless never gets the button:** the server refuses unless `target.mode == Root && takeover == Ready && enrolls && takeover_allowed`. The host refuses unless `base = up_root_base` (71), and `report_installed` never says `ready` outside root's base. The tracer check is extra on top of these. - **J314's P2s on `fix-root-add-71`:** P2-1 is fixed. Only `INFRATERNAL_REFUSED owner` maps to `unrecognized_install`; the other 71s map to `unproven_files` with their own sentences, are read only on exit 71, and are capped at 8 KiB. P2-2 is fixed: `command_failure` requires status 1 for `no_account`, it is tested with `Some(2)`, `Some(71)` and `None`, and the contract says the master connection matches on the line alone, which matches the code. ### For the owner (taste; not changed) The Take over confirmation is a page in the add-host flow, not a popover. TASTE's "A confirmation belongs to what it acts on" is about anchoring: never pointing at an unrelated window, plus short verbs side by side. The page opens inside that host's own add flow, uses "Back" and "Take over", and shows the id as a fact row, like the host-key page. I read that as consistent with the spirit of the rule, but its wording is about popovers, so it's your call. Separately, TASTE §6 / D162 ("mockups come before product") was not followed for this new page.

kayg commented

2026-11-07 09:19:41 +00:00

Author

Owner

J315: J342's review (84105) addressed on `addhost-takeover-d359`, head `1a7011136`

One commit per finding. Each oracle test was run red at its parent and green at its commit, on compute01 (logs under ~claude/j315/):

Commit	Finding	Red → green
`98f6c66ec`	P1-1, cause. A new setup location appears whole: staging builds `$base.bootstrap-new-<tx>` with the owner record and the acquisition journal, then renames it into place. A base can no longer exist without its journal. The rollback also removes this transaction's own unrenamed directory.	A new kill sweep cuts the staging after a Take over at every change and every write (including just after the owner write). Each time, Check never deletes the old install, and the server's rollback, then the restore, put it back exactly, with no temporary base or receipt left. The parent was red at the first cut (an empty base the rollback refused with 71). `red-/green-staging-sweep.txt`
`187e463c3`	P1-1, delete guard (Take over). A set-aside is deleted only beside a base that passes `validate_finished_install`.	J342's shape (a bare owner record beside the set-aside): red at the parent (old install deleted), green now. The "crash beside the new host" test now uses a real committed install. `red-/green-discard-takeover.txt`
`72066736e`	P1-1 for Re-enroll (D335), its own commit: the same guard for `superseded-*`.	Red at the parent, green now. `red-/green-discard-reenroll.txt`
`3815c1636`	P2-1. Cleanup after a late failure is now `uninstall_after_commit(committed, kind)`: a committed fresh install or Take over is uninstalled, a Replace or Re-enroll is rolled back.	Unit test over all 8 cases. A server-level test would need a really enrolled agent to fail after commit, which the scripted host can't produce.
`9a77783c8`	P3-1. The proof refuses any mount point at or under the install (from `/proc/self/mountinfo`; a same-filesystem bind mount keeps its device number).	Check in an unprivileged mount namespace: red at the parent (ready with a bind mount), green (unproven).
`09ac5e595`	P3-3. The proof refuses a `<unit>.d` beside the unit and any drop-in systemd reports for this unit (`show -p DropInPaths`). Distribution-wide `service.d` drop-ins still pass.	Red at the parent, green now.
`978f109b0`	P3-4. The busy message now says "It was left as it was found."
`c940d56c9`	P3-5. The `no_account` message and log line now say the host couldn't find the account.
`1a7011136`	D345 doc comment; `81c0a16be` merged `origin/dev`.

P3-6, root evidence redone. This time I ran the whole oracle as uid 0 in a private mount namespace at c940d56c9 (compute01:/root/j315/root/ev/oracle-root.txt): 121 tests, 115 pass, including every D359 test and the new ones.

Five failures are exactly J303's documented root-precondition tests (/root/j303/evidence/oracle-dev-root-5.txt).
The sixth, test_a_hangup_after_the_stop_still_puts_the_service_back, came from my harness: I started the run under nohup, so SIGHUP was ignored. Rerun as root in the foreground it passes (ev/hangup-foreground.txt, EXIT=0).

J342's bind-mount reproducer now passes as root (ev/j342-bind.txt): Check says unproven and Take over refuses (75). J342's staging reproducer cuts right after a line that no longer exists (the owner record is now written inside the temporary base). The new sweep covers that point and every other one.

Open question, not changed: Re-enroll also enrolls a new host id (its replacement host is None). After a commit it is still rolled back, not uninstalled, so it may share P2-1. You scoped P2-1 to Take over, so I left Re-enroll as it is on dev. Say if it should change too.

Gates:

verify quick on dev-02 at 1a7011136: all PASS (dev-02:~claude/j315-verify-quick.log).
verify fast at 1a7011136: queued on compute01 (run9).

Real-root proof (owner's shape, failure injection, Take over): armed, waiting for the live-mesh claim (J207 has held it since 06:55 UTC).

## J315: J342's review (84105) addressed on `addhost-takeover-d359`, head `1a7011136` One commit per finding. Each oracle test was run red at its parent and green at its commit, on compute01 (logs under `~claude/j315/`): | Commit | Finding | Red → green | |---|---|---| | `98f6c66ec` | **P1-1, cause.** A new setup location appears whole: staging builds `$base.bootstrap-new-<tx>` with the owner record **and** the acquisition journal, then renames it into place. A base can no longer exist without its journal. The rollback also removes this transaction's own unrenamed directory. | A new kill sweep cuts the staging after a Take over at every change **and every write** (including just after the owner write). Each time, Check never deletes the old install, and the server's rollback, then the restore, put it back exactly, with no temporary base or receipt left. The parent was red at the first cut (an empty base the rollback refused with 71). `red-/green-staging-sweep.txt` | | `187e463c3` | **P1-1, delete guard (Take over).** A set-aside is deleted only beside a base that passes `validate_finished_install`. | J342's shape (a bare owner record beside the set-aside): red at the parent (old install deleted), green now. The "crash beside the new host" test now uses a real committed install. `red-/green-discard-takeover.txt` | | `72066736e` | **P1-1 for Re-enroll (D335)**, its own commit: the same guard for `superseded-*`. | Red at the parent, green now. `red-/green-discard-reenroll.txt` | | `3815c1636` | **P2-1.** Cleanup after a late failure is now `uninstall_after_commit(committed, kind)`: a committed fresh install **or Take over** is uninstalled, a Replace or Re-enroll is rolled back. | Unit test over all 8 cases. A server-level test would need a really enrolled agent to fail after commit, which the scripted host can't produce. | | `9a77783c8` | **P3-1.** The proof refuses any mount point at or under the install (from `/proc/self/mountinfo`; a same-filesystem bind mount keeps its device number). | Check in an unprivileged mount namespace: red at the parent (ready with a bind mount), green (unproven). | | `09ac5e595` | **P3-3.** The proof refuses a `<unit>.d` beside the unit and any drop-in systemd reports for this unit (`show -p DropInPaths`). Distribution-wide `service.d` drop-ins still pass. | Red at the parent, green now. | | `978f109b0` | **P3-4.** The busy message now says "It was left as it was found." | | | `c940d56c9` | **P3-5.** The `no_account` message and log line now say the host couldn't find the account. | | | `1a7011136` | D345 doc comment; `81c0a16be` merged `origin/dev`. | | **P3-6, root evidence redone.** This time I ran the **whole** oracle as uid 0 in a private mount namespace at `c940d56c9` (`compute01:/root/j315/root/ev/oracle-root.txt`): 121 tests, 115 pass, including every D359 test and the new ones. - Five failures are exactly J303's documented root-precondition tests (`/root/j303/evidence/oracle-dev-root-5.txt`). - The sixth, `test_a_hangup_after_the_stop_still_puts_the_service_back`, came from my harness: I started the run under `nohup`, so SIGHUP was ignored. Rerun as root in the foreground it passes (`ev/hangup-foreground.txt`, `EXIT=0`). J342's bind-mount reproducer now passes as root (`ev/j342-bind.txt`): Check says `unproven` and Take over refuses (75). J342's staging reproducer cuts right after a line that no longer exists (the owner record is now written inside the temporary base). The new sweep covers that point and every other one. **Open question, not changed:** Re-enroll also enrolls a **new** host id (its replacement host is `None`). After a commit it is still rolled back, not uninstalled, so it may share P2-1. You scoped P2-1 to Take over, so I left Re-enroll as it is on dev. Say if it should change too. **Gates:** - `verify quick` on dev-02 at `1a7011136`: all PASS (`dev-02:~claude/j315-verify-quick.log`). - `verify fast` at `1a7011136`: queued on compute01 (run9). **Real-root proof** (owner's shape, failure injection, Take over): armed, waiting for the live-mesh claim (J207 has held it since 06:55 UTC).

kayg referenced this issue

2026-11-07 11:57:24 +00:00

dependency refresh 2026-11 #416

kayg referenced this issue

2026-11-07 12:25:56 +00:00

dependency refresh 2026-11 #416

kayg referenced this issue

2026-11-07 12:38:48 +00:00

Add-host: a failed install leaves a bootstrap lock that blocks every re-add forever #305

kayg commented

2026-11-07 12:55:46 +00:00

Author

Owner

J315 finish after J342's review: `addhost-takeover-d359` head `1a7011136`

The fix commits and their red → green evidence are in my previous comment. fix-root-add-71 is untouched (approved; the orchestrator is running its gate).

`verify fast` (compute01, run10), verbatim, `VERIFY_FAST_EXIT=0` (`~claude/j315/verify-fast-r3.log`)

+---------------------------+--------------+
| Rust gate                 | Result       |
+---------------------------+--------------+
| Nix Cargo vendoring       | PASS         |
| fmt                       | PASS         |
| migration names           | PASS         |
| migration tooling tests   | PASS         |
| VT native fmt             | PASS         |
| CLI plugin compile-out    | PASS         |
| clippy                    | PASS         |
| SSH runtime test helper   | PASS         |
| real-binary fixture paths | PASS         |
| Traefik component manifest | PASS         |
| release component publication | PASS         |
| test                      | PASS         |
| SSH inode reuse fixture   | PASS         |
| shim process-per-user     | PASS         |
| cargo-deny                | PASS         |
| gate architecture         | PASS         |
| doc coverage ratchet      | PASS         |
| shape lints off (D351)    | PASS         |
| doc comments on diff      | PASS         |
| fixed test waits          | PASS         |
| privileged integration    | PASS         |
| probe release exclusion   | PASS         |
| nightly fuzz reporter     | PASS         |
| static builds             | PASS         |
+---------------------------+--------------+
VERIFY_FAST_EXIT=0

Static size (report only): x86_64 27,829,712 B (D243 baseline delta +5,411,456).

`verify quick` (dev-02), verbatim (`dev-02:~claude/j315-verify-quick.log`)

| Rust gate                 | Result       |
| scope guard               | PASS         |
| migration names           | PASS         |
| Nix Cargo vendoring       | PASS         |
| fmt                       | PASS         |
| doc coverage ratchet      | PASS         |
| shape lints off (D351)    | PASS         |
| doc comments on diff      | PASS         |
| fixed test waits          | PASS         |
| clippy (workspace)        | PASS         |
| unit tests (changed)      | PASS         |
| ui literals               | PASS         |
| tracer typecheck          | PASS         |
VERIFY_QUICK_EXIT=0

run9's verify fast at the same head was cut when compute01's disk hit 100% (run9.log: echo: write error: No space left on device). run10 is that gate, resubmitted once.

Real-root proof rerun at `1a7011136` (compute01, 11:21 UTC, under the mesh claim)

A: a plain root add with throwaway server A, then A is gone.
B, failure injection: server B offers Take over and the replay confirms it. The old install is set aside, then the new join is refused on purpose, and "The earlier infraternal agent was put back as it was found." It is byte-identical to after A (B_VS_A_DIFF_EXIT=0).
C: Take over, install, the terminal check through the new agent, then Done. The new owner sits on a fresh root, and no set-aside is left.

The cleanup used the new install's own uninstall. infraternal0 and the nft table belong to another job and were left in place.

owner=be4cbd8333c647b2a4c65a2f5dce0a96 base_inode=2049:2097164 base_mode=700
tree_digest=3da73b7383570fb2ec67257fe9ad574d7b3c3fd4f2a898ae93beb19a9f74fe21  -
tree_entries=14
unit=e560fb8cea245dca unit_head=# infraternal bootstrap be4cbd8333c647b2a4c65a2f5dce0a96
launcher=/var/lib/infraternal/bin/current
enabled=enabled active=active mainpid=3534633
set_asides=

B_VS_A_DIFF_EXIT=0

owner=9c909f374ff1421eacea6ecfcb78e799 base_inode=2049:920614 base_mode=700
tree_digest=3e20248806daf0dc253aa46999df755702ef604eccc137c189699c202949b723  -
tree_entries=14
unit=ee31a0aae373f903 unit_head=# infraternal bootstrap 9c909f374ff1421eacea6ecfcb78e799
launcher=/var/lib/infraternal/bin/current
enabled=enabled active=active mainpid=3546008
set_asides=

owner=none base_inode=none base_mode=none
unit= unit_head=
launcher=none
enabled=not-found active=inactive mainpid=0
set_asides=
infraternal0     DOWN           <NO-CARRIER,POINTOPOINT,MULTICAST,NOARP,UP> 
table inet infraternal_mesh {
/var/lib/infraternal.bootstrap-cache

J342's P1 staging cut is covered as real root by the whole-oracle run at c940d56c9 (115 of 121 pass; the 6 failures are explained in my previous comment). C's exit 101 is the separate root re-add issue I reported earlier, not D359.

compute01 is clean: no targets, the loopback sshd is stopped, the throwaway keys and test binaries are deleted, and I hold no claim.

Open

Should Re-enroll (D335) also uninstall a committed new host after a late failure? I left dev's behaviour unchanged; question asked above.
The root re-add that isn't recognised as "already added" (reported earlier; suggest a follow-up issue).
Page vs popover for the Take over confirmation, plus the mockup round: with the owner, per the orchestrator. The page stays for now.

## J315 finish after J342's review: `addhost-takeover-d359` head **`1a7011136`** The fix commits and their red → green evidence are in my previous comment. `fix-root-add-71` is untouched (approved; the orchestrator is running its gate). ### `verify fast` (compute01, run10), verbatim, `VERIFY_FAST_EXIT=0` (`~claude/j315/verify-fast-r3.log`) ``` +---------------------------+--------------+ | Rust gate | Result | +---------------------------+--------------+ | Nix Cargo vendoring | PASS | | fmt | PASS | | migration names | PASS | | migration tooling tests | PASS | | VT native fmt | PASS | | CLI plugin compile-out | PASS | | clippy | PASS | | SSH runtime test helper | PASS | | real-binary fixture paths | PASS | | Traefik component manifest | PASS | | release component publication | PASS | | test | PASS | | SSH inode reuse fixture | PASS | | shim process-per-user | PASS | | cargo-deny | PASS | | gate architecture | PASS | | doc coverage ratchet | PASS | | shape lints off (D351) | PASS | | doc comments on diff | PASS | | fixed test waits | PASS | | privileged integration | PASS | | probe release exclusion | PASS | | nightly fuzz reporter | PASS | | static builds | PASS | +---------------------------+--------------+ VERIFY_FAST_EXIT=0 ``` Static size (report only): x86_64 27,829,712 B (D243 baseline delta +5,411,456). ### `verify quick` (dev-02), verbatim (`dev-02:~claude/j315-verify-quick.log`) ``` | Rust gate | Result | | scope guard | PASS | | migration names | PASS | | Nix Cargo vendoring | PASS | | fmt | PASS | | doc coverage ratchet | PASS | | shape lints off (D351) | PASS | | doc comments on diff | PASS | | fixed test waits | PASS | | clippy (workspace) | PASS | | unit tests (changed) | PASS | | ui literals | PASS | | tracer typecheck | PASS | VERIFY_QUICK_EXIT=0 ``` run9's `verify fast` at the same head was cut when compute01's disk hit 100% (`run9.log`: `echo: write error: No space left on device`). run10 is that gate, resubmitted once. ### Real-root proof rerun at `1a7011136` (compute01, 11:21 UTC, under the mesh claim) - **A:** a plain root add with throwaway server A, then A is gone. - **B, failure injection:** server B offers Take over and the replay confirms it. The old install is set aside, then the new join is refused on purpose, and "The earlier infraternal agent was put back as it was found." It is byte-identical to after A (`B_VS_A_DIFF_EXIT=0`). - **C:** Take over, install, the terminal check through the new agent, then Done. The new owner sits on a fresh root, and no set-aside is left. The cleanup used the new install's own uninstall. `infraternal0` and the nft table belong to another job and were left in place. ``` owner=be4cbd8333c647b2a4c65a2f5dce0a96 base_inode=2049:2097164 base_mode=700 tree_digest=3da73b7383570fb2ec67257fe9ad574d7b3c3fd4f2a898ae93beb19a9f74fe21 - tree_entries=14 unit=e560fb8cea245dca unit_head=# infraternal bootstrap be4cbd8333c647b2a4c65a2f5dce0a96 launcher=/var/lib/infraternal/bin/current enabled=enabled active=active mainpid=3534633 set_asides= B_VS_A_DIFF_EXIT=0 owner=9c909f374ff1421eacea6ecfcb78e799 base_inode=2049:920614 base_mode=700 tree_digest=3e20248806daf0dc253aa46999df755702ef604eccc137c189699c202949b723 - tree_entries=14 unit=ee31a0aae373f903 unit_head=# infraternal bootstrap 9c909f374ff1421eacea6ecfcb78e799 launcher=/var/lib/infraternal/bin/current enabled=enabled active=active mainpid=3546008 set_asides= owner=none base_inode=none base_mode=none unit= unit_head= launcher=none enabled=not-found active=inactive mainpid=0 set_asides= infraternal0 DOWN <NO-CARRIER,POINTOPOINT,MULTICAST,NOARP,UP> table inet infraternal_mesh { /var/lib/infraternal.bootstrap-cache ``` J342's P1 staging cut is covered as real root by the whole-oracle run at `c940d56c9` (115 of 121 pass; the 6 failures are explained in my previous comment). C's exit 101 is the separate root re-add issue I reported earlier, not D359. compute01 is clean: no targets, the loopback sshd is stopped, the throwaway keys and test binaries are deleted, and I hold no claim. ### Open 1. Should Re-enroll (D335) also uninstall a committed new host after a late failure? I left dev's behaviour unchanged; question asked above. 2. The root re-add that isn't recognised as "already added" (reported earlier; suggest a follow-up issue). 3. Page vs popover for the Take over confirmation, plus the mockup round: with the owner, per the orchestrator. The page stays for now.

kayg commented

2026-11-07 12:57:49 +00:00

Author

Owner

J315: new head on addhost-takeover-d359: 597cdb6b3. It adds one commit to 1a7011136: add-host: a Re-enroll that fails after commit uninstalls its new host (D335). uninstall_after_commit now rolls back only a Replace. A committed fresh install, Take over or Re-enroll is uninstalled after a late failure, and the unit test covers all eight cases. verify quick on dev-02 is running for this head; I'll post the result here. #418 (the root re-add) is left alone, and the confirmation stays a page.

J315: new head on `addhost-takeover-d359`: **`597cdb6b3`**. It adds one commit to `1a7011136`: *add-host: a Re-enroll that fails after commit uninstalls its new host (D335)*. `uninstall_after_commit` now rolls back only a Replace. A committed fresh install, Take over or Re-enroll is uninstalled after a late failure, and the unit test covers all eight cases. `verify quick` on dev-02 is running for this head; I'll post the result here. #418 (the root re-add) is left alone, and the confirmation stays a page.

kayg commented

2026-11-07 13:04:27 +00:00

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Owner

J315: verify quick on dev-02 at 597cdb6b3, verbatim (dev-02:~claude/j315-verify-quick.log; its target is deleted):

| Rust gate                 | Result       |
| scope guard               | PASS         |
| migration names           | PASS         |
| Nix Cargo vendoring       | PASS         |
| fmt                       | PASS         |
| doc coverage ratchet      | PASS         |
| shape lints off (D351)    | PASS         |
| doc comments on diff      | PASS         |
| fixed test waits          | PASS         |
| clippy (workspace)        | PASS         |
| unit tests (changed)      | PASS         |
| ui literals               | PASS         |
| tracer typecheck          | PASS         |
VERIFY_QUICK_EXIT=0

kayg commented

2026-11-07 13:05:40 +00:00

Author

Owner

Start: J349, independent security and correctness review of addhost-takeover-d359 against origin/dev 21b3c84ce. I'm reviewing J315's newest head 597cdb6b3 (from 84584: 1a7011136 plus the Re-enroll late-failure uninstall). No branch of my own, and I don't push, merge or deploy.

Plan, about 1.5 h:

Read the diff (install.rs staging and rollback, previous_attempt.sh discard, proof and Take over, bootstrap.rs late-failure cleanup, uninstall order). Done.
Real root run on compute01 through build-slot, in a throwaway tree at /root/j349, in private mount namespaces:
- J315's P1/P3 tests and kill sweeps;
- J342's reproducer;
- my own sweeps: failure injection (ENOSPC/EIO before and after each effect), a cut whose server rollback never runs, and a stale temporary base;
- an ext4 power-cut model of the commit.
A read-only false-positive check of the drop-in and mount refusals on Debian (compute01) and Ubuntu (dev-02).
Verdict here.

Start: **J349**, independent security and correctness review of `addhost-takeover-d359` against origin/dev `21b3c84ce`. I'm reviewing J315's newest head **`597cdb6b3`** (from 84584: `1a7011136` plus the Re-enroll late-failure uninstall). No branch of my own, and I don't push, merge or deploy. Plan, about 1.5 h: 1. Read the diff (install.rs staging and rollback, previous_attempt.sh discard, proof and Take over, bootstrap.rs late-failure cleanup, uninstall order). Done. 2. Real root run on compute01 through build-slot, in a throwaway tree at `/root/j349`, in private mount namespaces: - J315's P1/P3 tests and kill sweeps; - J342's reproducer; - my own sweeps: failure injection (ENOSPC/EIO before and after each effect), a cut whose server rollback never runs, and a stale temporary base; - an ext4 power-cut model of the commit. 3. A read-only false-positive check of the drop-in and mount refusals on Debian (compute01) and Ubuntu (dev-02). 4. Verdict here.

kayg referenced this issue

2026-11-07 13:05:50 +00:00

Add-host: a failed install leaves a bootstrap lock that blocks every re-add forever #305

kayg referenced this issue

2026-11-07 14:00:16 +00:00

Add-host: a failed install leaves a bootstrap lock that blocks every re-add forever #305

kayg commented

2026-11-07 14:10:52 +00:00

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Owner

J349 review: `addhost-takeover-d359` @ `597cdb6b3`: REQUEST CHANGES (one P2, one-line fix)

J342's P1 is fixed. Kills, SIGHUP and command failures (ENOSPC/EIO) never delete the old install and never leave two installs running. All of these were swept as real root, at every step. One gap remains: a power cut right after the commit can leave the old install deleted and the new binary empty (P2-1). The fix is one sync -f before the commit's deletes. Everything else is P3, mostly behaviour that is already on dev.

Following the reviewer rule, I didn't rerun the gate. J315's verify fast (84575) and verify quick at this head (84590) are on the issue.

Root run: compute01, through build-slot (slot 1/5, 14:25–15:22 IST), as uid 0 (whoami.txt = 0), every case in a private mount namespace. The throwaway tree under /root/j349 and my scratch are deleted. No loop devices, mounts or processes are left. Evidence is in compute01:/root/j349/ev/.

P2-1: a power cut after the commit can leave neither install

Where: install.rs commit_after, rm -rf "$stage"; retire_set_aside (also finish_stuck_upgrade). The upload read_payload > "$prepared/payload"; mv … and the commit never sync.

Nothing in the setup scripts calls sync, yet the commit is the step that deletes the only working copy of the old install. On ext4 and XFS, renames and deletes reach the disk through the journal within seconds (ext4 commits every 5 s). File data written moments earlier can wait in the page cache for up to dirty_expire_centisecs (3000 on compute01, so about 30 s) plus a writeback pass. XFS, AlmaLinux's default, is the classic case of empty files after a crash. If power fails in that window, the set-aside's deletion is on disk, while the new bin/live (one inode with the cache payload) and anything else the new agent just wrote may not be. The old install is then gone, and the "committed" new one can't run.

Model, real root, ext4 on a loop image (powercut.txt, script powercut-as-run.sh). It replays the shipped order: upload, link, 3 s for enroll and proof, rm -rf stage, rm -rf the set-aside. Then it cuts the power with EXT4_IOC_SHUTDOWN(LOGFLUSH): the journal reaches the disk, cached file data does not.

case=nosync new_bin_size=0 new_bin_intact=no old_install=absent
case=sync new_bin_size=16777216 new_bin_intact=yes old_install=absent
POWERCUT_EXIT=0

Fix: in retire_set_aside, when there is something to delete, run sync -f "$base" (a syncfs of that filesystem, which also covers the cache payload and the new agent's state; coreutils 8.24+), and refuse to delete on failure. Do it before the rm -rf, so every commit (Take over, Re-enroll, finish_stuck_upgrade) gets it. The cost is one syncfs per add, and only when a set-aside exists. Re-enroll on dev has the same window, so this also closes it there (D335). D359 says "deletes it only after the new install has committed", and a commit that isn't on disk hasn't committed.

Adversarial runs (all real root unless noted)

J315's tests and kill sweeps, 14/14 pass (j315-sample.txt, SAMPLE_EXIT=0, 753 s). They include:
- the new staging cut sweep at every change and write;
- both "keeps … beside a base that is not finished" guards (Take over and Re-enroll) and the "deletes … beside the new host" case;
- the mount and drop-in refusals;
- the Take over and restore kill sweeps, the hangup (in the foreground this time), and the rootless refusal;
- the restore refusing beside a new install, and the "changed since the confirmation" refusal.
The whole oracle at this head, as root: 114/119 EarlierSetup pass (first pass in j349-adversarial.txt). The 5 failures are exactly J315's documented root-precondition set (absence_that_cannot_be_read, hidden_process_unrelated, interrupted_activation_refuses_a_hidden_shim, only_roots_up_base_may_be_0711, start_fresh_refuses_a_shim_that_appears). My harness subclassed EarlierSetup and so started the suite a second time. I stopped that duplicate by its exact PID and ran only my own tests in the same slot.
J342's reproducer (j342-repro.txt): the bind-mount case now passes (Check says unproven, Take over exits 75). The staging case stops at its own precondition, because the bare owner write it cuts after no longer exists. That is the fix.
J349, the server's rollback never runs (j349-only.txt, [no-rollback] rows). I killed the staging after Take over at each of its 10 steps and ran Check twice each time, as any server would. The old install was always whole in the set-aside and nowhere else. Check offered it back (SET_ASIDE taken_over) or reported the new attempt's journal (STALE/LOCKED). The original rollback plus restore still put it back exactly.
J349, ENOSPC/EIO at every staging step, before and after each effect (failure-sweep.txt). The old install stayed whole in the set-aside at every step. Two steps leave a rollback the server can't finish: see P3-1.
The late-failure uninstall (Q3), read in the code:
- It can't remove the old install. That install carries another id, and a commit has already deleted it.
- It can't remove a newer install from a retry. Fresh installs, Take over and Re-enroll each get a new Uuid::new_v4 (replacement_host is None for a Re-enroll: replaced.then_some(host)), and uninstall_committed exits 0 unless .bootstrap-owner names this attempt's id with no stage present. --bootstrap-uninstall checks that again under the setup guard.
- It is idempotent except for one cut, inside the binary's own cleanup: P3-4.

Answers to the brief

Can any cut leave the old install deleted with nothing committed, or two installs fighting? Kills, SIGHUP, ENOSPC and EIO: no (above). Two installs: no. Restore refuses (72) while any base is in place, and Take over stops and disables the old unit before the move and removes it right after. Power loss: yes, P2-1.
Is the rename atomic, and is a leftover temporary folder handled on every path? mv -T "$base.bootstrap-new-$tx" "$base" is one rename(2) inside /var/lib, under the setup guard, onto a path just checked to be absent: atomic. A leftover temporary folder is removed only by its own transaction's rollback. A re-add, Start fresh, Re-enroll and Take over all leave one from another transaction in place (P3-2).
Can the late-failure uninstall remove the old install or a retry's install? No, see above. Idempotent apart from P3-4.
False positives? None on Debian 13 (systemd 257) or Ubuntu 24.04 (systemd 255) (fp.sh, output below).
- No mount sits at or under /var/lib/infraternal, and infraternal never mounts there (no mount calls in the code).
- Stock drop-ins (Ubuntu's systemd-journald.service.d/nice.conf) pass.
- AlmaLinux 9's global service.d/10-timeout-abort.conf can't match *infraternal-agent.service.d/*. I had no Alma VM, so this one is read, not run.
- The only refusal a person can trigger is a deliberate systemctl edit infraternal-agent.service, which is the intent.
```
== Debian GNU/Linux 13 (trixie), systemd 257
mounts at/under /var/lib/infraternal: []
infraternal-agent.service dropins=[] -> pass
== Ubuntu 24.04.5 LTS, systemd 255
mounts at/under /var/lib/infraternal: []
systemd-journald.service dropins=[/usr/lib/systemd/system/systemd-journald.service.d/nice.conf] -> pass
```
Do the earlier sound points still hold?
- The new $base.bootstrap-new-* sits in root's 0755 /var/lib, is made with mkdir -m 700, and its files are written under set -C.
- confirm still checks the batch owner, compares the challenge, and take()s it once. await_confirmation only moved that code.
- The Take over challenge is a fresh new_v4 per offer, and the host re-checks the record (owner plus root dev:ino). The "changed since the confirmation" test passes as root.
- Rootless is refused on the server (target.mode != Root) and on the host (base = up_root_base, else 71). Passes as root.

P3s

P3-1, a failed write in staging leaves a rollback the server can't finish (failure-sweep.txt). If printf "$kind" > "$stage/kind" fails, it leaves an empty kind, and the rollback exits 71 (kind=) although the journal beside it says fresh. An empty $stage/lease makes retire_setup_lease exit 1. Then restore refuses (72) because a base is in place. The old install is safe in the set-aside, but it stays out of service with no way back inside the product. Both lines are unchanged from dev (install.rs:1577/1680 on dev). Take over makes the result worse. Suggested fix: read kind only when [ -s ], else use the journal's; treat an empty lease as no lease. A power cut during staging produces the same empty-file shape, and fails safe the same way.
```
after=False step=7 stage_rc=1 old_whole_in_aside=True rollback_rc=71 restore=72: put_back_exactly=False
after=False step=9 stage_rc=1 old_whole_in_aside=True rollback_rc=1 restore=72: put_back_exactly=False
```
P3-2, a leftover temporary base from another transaction is never removed. It holds only an owner id and a journal, with no secrets. Check reports INFRATERNAL_SETUP_ABSENT beside it, and nothing else removes it ([stale] rows in j349-only.txt). It appears after a cut between mkdir and mv whose own rollback never runs (rows 1–3 of [no-rollback]: temp_left=True). Suggested fix: Check or staging removes, under the guard, any private bootstrap-new-* of ours that holds only those two files.
P3-3, prefix drop-ins get past the drop-in refusal. systemd also applies infraternal-.service.d/*.conf to infraternal-agent.service, and DropInPaths lists it, but the pattern *infraternal-agent.service.d/* doesn't match. I demonstrated it with a made-up user unit (prefix-dropin.txt): ExecStart was replaced by /bin/false, and the shipped pattern said pass. The system unit's drop-ins are root-only, so this is J342's P3-3 class. Fix: also match */infraternal-.service.d/*, or refuse any listed drop-in that isn't directly in a global service.d/.
P3-4, the late-failure uninstall isn't idempotent across a cut inside the binary's cleanup. crates/plugins/remote/src/uninstall.rs removes the unit and launcher (line 634) before remove_files, and validate requires the unit. A retry then exits 71, and the next Check reports unproven. The agent is already disabled at that point, so nothing runs. This is on dev already; Take over and Re-enroll now reach it too.
P3-5, a commit whose result never reaches the server still leaves an agent running for a revoked id. This is J342's P2-1 when the SSH drop comes after the host committed: committed() stays false, ROLLBACK_TRANSACTION exits 0 (owner matches, no stage, no journal), the restore answers untouched, and the host is revoked. Fresh installs on dev have the same gap. It can be recovered, because a re-add offers Take over of the revoked id. Fix: also call uninstall_committed when the commit's outcome is unknown. It is owner-guarded and does nothing while a stage exists.
P3-6, the mesh file allowlist will drift. validate_upgrade_sessions accepts exactly six mesh-* names. When the mesh plugin adds a state file, every real root install reads as unproven (Take over is never offered), and a commit-cut set-aside is kept, with the old key, until the next commit. It fails safe. Add a test that ties this list to node_state.rs.

Asked of me

J315's open question (84191): Re-enroll now uninstalls after a late failure (597cdb6b3). I agree: it enrolls a new id, and its old install was deleted at the commit, so rolling it back would leave a running agent for a revoked id.

Verdict: REQUEST CHANGES for P2-1 only. With sync -f in retire_set_aside and a test that it runs before the delete, I'd approve. P3-1 and P3-2 are cheap and worth taking in the same round. The rest can be follow-ups.

## J349 review: `addhost-takeover-d359` @ **`597cdb6b3`**: **REQUEST CHANGES** (one P2, one-line fix) J342's P1 is fixed. Kills, SIGHUP and command failures (ENOSPC/EIO) never delete the old install and never leave two installs running. All of these were swept as real root, at every step. One gap remains: a **power cut** right after the commit can leave the old install deleted and the new binary empty (P2-1). The fix is one `sync -f` before the commit's deletes. Everything else is P3, mostly behaviour that is already on dev. Following the reviewer rule, I didn't rerun the gate. J315's `verify fast` (84575) and `verify quick` at this head (84590) are on the issue. **Root run:** compute01, through build-slot (slot 1/5, 14:25–15:22 IST), as uid 0 (`whoami.txt` = `0`), every case in a private mount namespace. The throwaway tree under `/root/j349` and my scratch are deleted. No loop devices, mounts or processes are left. Evidence is in `compute01:/root/j349/ev/`. ### P2-1: a power cut after the commit can leave neither install **Where:** `install.rs` `commit_after`, `rm -rf "$stage"; retire_set_aside` (also `finish_stuck_upgrade`). The upload `read_payload > "$prepared/payload"; mv …` and the commit never sync. Nothing in the setup scripts calls `sync`, yet the commit is the step that deletes the only working copy of the old install. On ext4 and XFS, renames and deletes reach the disk through the journal within seconds (ext4 commits every 5 s). File data written moments earlier can wait in the page cache for up to `dirty_expire_centisecs` (3000 on compute01, so about 30 s) plus a writeback pass. XFS, AlmaLinux's default, is the classic case of empty files after a crash. If power fails in that window, the set-aside's deletion is on disk, while the new `bin/live` (one inode with the cache payload) and anything else the new agent just wrote may not be. The old install is then gone, and the "committed" new one can't run. **Model, real root, ext4 on a loop image** (`powercut.txt`, script `powercut-as-run.sh`). It replays the shipped order: upload, link, 3 s for enroll and proof, `rm -rf stage`, `rm -rf` the set-aside. Then it cuts the power with `EXT4_IOC_SHUTDOWN(LOGFLUSH)`: the journal reaches the disk, cached file data does not. ``` case=nosync new_bin_size=0 new_bin_intact=no old_install=absent case=sync new_bin_size=16777216 new_bin_intact=yes old_install=absent POWERCUT_EXIT=0 ``` **Fix:** in `retire_set_aside`, when there is something to delete, run `sync -f "$base"` (a syncfs of that filesystem, which also covers the cache payload and the new agent's state; coreutils 8.24+), and refuse to delete on failure. Do it before the `rm -rf`, so every commit (Take over, Re-enroll, `finish_stuck_upgrade`) gets it. The cost is one syncfs per add, and only when a set-aside exists. Re-enroll on dev has the same window, so this also closes it there (D335). D359 says "deletes it only after the new install has committed", and a commit that isn't on disk hasn't committed. ### Adversarial runs (all real root unless noted) - **J315's tests and kill sweeps, 14/14 pass** (`j315-sample.txt`, `SAMPLE_EXIT=0`, 753 s). They include: - the new staging cut sweep at every change and write; - both "keeps … beside a base that is not finished" guards (Take over and Re-enroll) and the "deletes … beside the new host" case; - the mount and drop-in refusals; - the Take over and restore kill sweeps, the hangup (in the foreground this time), and the rootless refusal; - the restore refusing beside a new install, and the "changed since the confirmation" refusal. - **The whole oracle at this head, as root: 114/119 `EarlierSetup` pass** (first pass in `j349-adversarial.txt`). The 5 failures are exactly J315's documented root-precondition set (`absence_that_cannot_be_read`, `hidden_process_unrelated`, `interrupted_activation_refuses_a_hidden_shim`, `only_roots_up_base_may_be_0711`, `start_fresh_refuses_a_shim_that_appears`). My harness subclassed `EarlierSetup` and so started the suite a second time. I stopped that duplicate by its exact PID and ran only my own tests in the same slot. - **J342's reproducer** (`j342-repro.txt`): the bind-mount case now passes (Check says `unproven`, Take over exits 75). The staging case stops at its own precondition, because the bare owner write it cuts after no longer exists. That is the fix. - **J349, the server's rollback never runs** (`j349-only.txt`, `[no-rollback]` rows). I killed the staging after Take over at each of its 10 steps and ran Check twice each time, as any server would. The old install was **always whole in the set-aside and nowhere else**. Check offered it back (`SET_ASIDE taken_over`) or reported the new attempt's journal (`STALE`/`LOCKED`). The original rollback plus restore still put it back exactly. - **J349, ENOSPC/EIO at every staging step, before and after each effect** (`failure-sweep.txt`). The old install stayed whole in the set-aside at every step. Two steps leave a rollback the server can't finish: see P3-1. - **The late-failure uninstall (Q3), read in the code:** - It can't remove the old install. That install carries another id, and a commit has already deleted it. - It can't remove a newer install from a retry. Fresh installs, Take over and Re-enroll each get a new `Uuid::new_v4` (`replacement_host` is `None` for a Re-enroll: `replaced.then_some(host)`), and `uninstall_committed` exits 0 unless `.bootstrap-owner` names this attempt's id with no stage present. `--bootstrap-uninstall` checks that again under the setup guard. - It is idempotent except for one cut, inside the binary's own cleanup: P3-4. ### Answers to the brief 1. **Can any cut leave the old install deleted with nothing committed, or two installs fighting?** Kills, SIGHUP, ENOSPC and EIO: no (above). Two installs: no. Restore refuses (72) while any base is in place, and Take over stops and disables the old unit before the move and removes it right after. Power loss: **yes, P2-1.** 2. **Is the rename atomic, and is a leftover temporary folder handled on every path?** `mv -T "$base.bootstrap-new-$tx" "$base"` is one `rename(2)` inside `/var/lib`, under the setup guard, onto a path just checked to be absent: atomic. A leftover temporary folder is removed only by **its own transaction's rollback**. A re-add, Start fresh, Re-enroll and Take over all leave one from another transaction in place (P3-2). 3. **Can the late-failure uninstall remove the old install or a retry's install?** No, see above. Idempotent apart from P3-4. 4. **False positives?** None on Debian 13 (systemd 257) or Ubuntu 24.04 (systemd 255) (`fp.sh`, output below). - No mount sits at or under `/var/lib/infraternal`, and infraternal never mounts there (no mount calls in the code). - Stock drop-ins (Ubuntu's `systemd-journald.service.d/nice.conf`) pass. - AlmaLinux 9's global `service.d/10-timeout-abort.conf` can't match `*infraternal-agent.service.d/*`. I had no Alma VM, so this one is read, not run. - The only refusal a person can trigger is a deliberate `systemctl edit infraternal-agent.service`, which is the intent. ``` == Debian GNU/Linux 13 (trixie), systemd 257 mounts at/under /var/lib/infraternal: [] infraternal-agent.service dropins=[] -> pass == Ubuntu 24.04.5 LTS, systemd 255 mounts at/under /var/lib/infraternal: [] systemd-journald.service dropins=[/usr/lib/systemd/system/systemd-journald.service.d/nice.conf] -> pass ``` 5. **Do the earlier sound points still hold?** - The new `$base.bootstrap-new-*` sits in root's 0755 `/var/lib`, is made with `mkdir -m 700`, and its files are written under `set -C`. - `confirm` still checks the batch owner, compares the challenge, and `take()`s it once. `await_confirmation` only moved that code. - The Take over challenge is a fresh `new_v4` per offer, and the host re-checks the record (owner plus root `dev:ino`). The "changed since the confirmation" test passes as root. - Rootless is refused on the server (`target.mode != Root`) and on the host (`base = up_root_base`, else 71). Passes as root. ### P3s - **P3-1, a failed write in staging leaves a rollback the server can't finish** (`failure-sweep.txt`). If `printf "$kind" > "$stage/kind"` fails, it leaves an empty `kind`, and the rollback exits 71 (`kind=`) although the journal beside it says `fresh`. An empty `$stage/lease` makes `retire_setup_lease` exit 1. Then restore refuses (72) because a base is in place. The old install is safe in the set-aside, but it stays out of service with no way back inside the product. Both lines are unchanged from dev (`install.rs:1577/1680` on dev). Take over makes the result worse. Suggested fix: read `kind` only when `[ -s ]`, else use the journal's; treat an empty lease as no lease. A power cut during staging produces the same empty-file shape, and fails safe the same way. ``` after=False step=7 stage_rc=1 old_whole_in_aside=True rollback_rc=71 restore=72: put_back_exactly=False after=False step=9 stage_rc=1 old_whole_in_aside=True rollback_rc=1 restore=72: put_back_exactly=False ``` - **P3-2, a leftover temporary base from another transaction is never removed.** It holds only an owner id and a journal, with no secrets. Check reports `INFRATERNAL_SETUP_ABSENT` beside it, and nothing else removes it (`[stale]` rows in `j349-only.txt`). It appears after a cut between `mkdir` and `mv` whose own rollback never runs (rows 1–3 of `[no-rollback]`: `temp_left=True`). Suggested fix: Check or staging removes, under the guard, any private `bootstrap-new-*` of ours that holds only those two files. - **P3-3, prefix drop-ins get past the drop-in refusal.** systemd also applies `infraternal-.service.d/*.conf` to `infraternal-agent.service`, and `DropInPaths` lists it, but the pattern `*infraternal-agent.service.d/*` doesn't match. I demonstrated it with a made-up user unit (`prefix-dropin.txt`): ExecStart was replaced by `/bin/false`, and the shipped pattern said `pass`. The system unit's drop-ins are root-only, so this is J342's P3-3 class. Fix: also match `*/infraternal-.service.d/*`, or refuse any listed drop-in that isn't directly in a global `service.d/`. - **P3-4, the late-failure uninstall isn't idempotent across a cut inside the binary's cleanup.** `crates/plugins/remote/src/uninstall.rs` removes the unit and launcher (line 634) before `remove_files`, and `validate` requires the unit. A retry then exits 71, and the next Check reports `unproven`. The agent is already disabled at that point, so nothing runs. This is on dev already; Take over and Re-enroll now reach it too. - **P3-5, a commit whose result never reaches the server still leaves an agent running for a revoked id.** This is J342's P2-1 when the SSH drop comes after the host committed: `committed()` stays false, `ROLLBACK_TRANSACTION` exits 0 (owner matches, no stage, no journal), the restore answers `untouched`, and the host is revoked. Fresh installs on dev have the same gap. It can be recovered, because a re-add offers Take over of the revoked id. Fix: also call `uninstall_committed` when the commit's outcome is unknown. It is owner-guarded and does nothing while a stage exists. - **P3-6, the mesh file allowlist will drift.** `validate_upgrade_sessions` accepts exactly six `mesh-*` names. When the mesh plugin adds a state file, every real root install reads as `unproven` (Take over is never offered), and a commit-cut set-aside is kept, with the old key, until the next commit. It fails safe. Add a test that ties this list to `node_state.rs`. ### Asked of me J315's open question (84191): Re-enroll now uninstalls after a late failure (`597cdb6b3`). I agree: it enrolls a new id, and its old install was deleted at the commit, so rolling it back would leave a running agent for a revoked id. **Verdict: REQUEST CHANGES** for P2-1 only. With `sync -f` in `retire_set_aside` and a test that it runs before the delete, I'd approve. P3-1 and P3-2 are cheap and worth taking in the same round. The rest can be follow-ups.

kayg referenced this issue

2026-11-07 14:20:35 +00:00

Add host: staging write failures, leftover temp bases, uninstall idempotency, unknown commit outcome, mesh-state list (J349 P3s, #394) #423

kayg commented

2026-11-07 14:50:47 +00:00

Author

Owner

J315: J349's re-review (84681) addressed. `addhost-takeover-d359` head `a8324274a`

Commit	Finding	Evidence
`f6138bc6f`	P2-1, power loss. Every commit (both in `install.rs`, through the shared `COMMIT_RETIRE`, and `finish_stuck_upgrade`) now runs `settle_set_aside` first: when a set-aside exists, one `sync -f "$base"`, and a failed sync refuses rather than delete. It runs before the journal is removed, not only before the set-aside: otherwise a power cut after the stage removal could leave a structurally finished base with an empty binary, and a later Check would delete the set-aside. `retire_set_aside` also syncs before its own delete, so it is safe for any caller. A commit with nothing set aside pays nothing. This also closes the window for Re-enroll on dev.	The oracle runs the real `COMMIT_RETIRE` after a Take over with `sync`/`rm` traced. A sync comes before each delete, a failing sync deletes nothing (not even the journal), and a commit with nothing set aside doesn't sync. Red at the parent (a failed sync still deleted everything), green now (`compute01:~claude/j315/{red,green}-durable.txt`). J349's ext4 loop-image model needs root and a loop device, so it is referenced in the commit message (`/root/j349/ev/powercut.txt`), not ported.
`422dbb213`	P3-3, prefix drop-ins. The proof also refuses `infraternal-.service.d` beside the unit and any reported drop-in under it.	Red at the parent (`ready`), green now (`unproven`). `{red,green}-prefix-dropin.txt`
`a8324274a`	D345 doc comment on `commit_with_timeout`.

The whole oracle at a8324274a, as uid 0 in a private mount namespace: 122 tests, and only J303's 5 documented root-precondition tests fail. Every D359 test passes, including the new ones (compute01:/root/j315/root/ev/oracle-root.txt, whoami.txt = 0, no scratch left).

The same suite as claude on compute01 now gives 24 false failures, all exit 73 (busy). J347 is running infraternal shims as claude right now, in infraternal-session-*.scope. The J272 hidden-holder rule counts any hidden same-user process in an infraternal session scope as a holder of the install, whichever install it belongs to. That is a test-environment clash on a shared host, but the rule is broader than it should be, so I've added it to #423.

J349's other P3s (staging write failures, the leftover temporary base, uninstall idempotency, an unknown commit outcome, mesh-list drift) are in #423 with J349's evidence. Not fixed here.

verify quick on dev-02: queued and not yet run. dev-02 has 39 GB free, under its 40 GB floor, so build-slot holds the job although the slot is free. None of that space is mine (my checkout is 550 MB and has no target). The space is other jobs' targets: infraternal-j317-gate/target alone is 35 GB. I'll post the result here as soon as it runs. It comes after the previous run at 422dbb213, which only failed on the missing doc comment now added in a8324274a.

## J315: J349's re-review (84681) addressed. `addhost-takeover-d359` head **`a8324274a`** | Commit | Finding | Evidence | |---|---|---| | `f6138bc6f` | **P2-1, power loss.** Every commit (both in `install.rs`, through the shared `COMMIT_RETIRE`, and `finish_stuck_upgrade`) now runs `settle_set_aside` first: when a set-aside exists, one `sync -f "$base"`, and a failed sync refuses rather than delete. It runs **before the journal is removed**, not only before the set-aside: otherwise a power cut after the stage removal could leave a structurally finished base with an empty binary, and a later Check would delete the set-aside. `retire_set_aside` also syncs before its own delete, so it is safe for any caller. A commit with nothing set aside pays nothing. This also closes the window for Re-enroll on dev. | The oracle runs the real `COMMIT_RETIRE` after a Take over with `sync`/`rm` traced. A sync comes before each delete, a failing sync deletes nothing (not even the journal), and a commit with nothing set aside doesn't sync. Red at the parent (a failed sync still deleted everything), green now (`compute01:~claude/j315/{red,green}-durable.txt`). J349's ext4 loop-image model needs root and a loop device, so it is referenced in the commit message (`/root/j349/ev/powercut.txt`), not ported. | | `422dbb213` | **P3-3, prefix drop-ins.** The proof also refuses `infraternal-.service.d` beside the unit and any reported drop-in under it. | Red at the parent (`ready`), green now (`unproven`). `{red,green}-prefix-dropin.txt` | | `a8324274a` | D345 doc comment on `commit_with_timeout`. | | **The whole oracle at `a8324274a`, as uid 0 in a private mount namespace:** 122 tests, and only J303's 5 documented root-precondition tests fail. Every D359 test passes, including the new ones (`compute01:/root/j315/root/ev/oracle-root.txt`, `whoami.txt` = 0, no scratch left). The same suite as `claude` on compute01 now gives 24 false failures, all exit 73 (busy). J347 is running infraternal shims as `claude` right now, in `infraternal-session-*.scope`. The J272 hidden-holder rule counts any hidden same-user process in an infraternal session scope as a holder of the install, whichever install it belongs to. That is a test-environment clash on a shared host, but the rule is broader than it should be, so I've added it to #423. **J349's other P3s** (staging write failures, the leftover temporary base, uninstall idempotency, an unknown commit outcome, mesh-list drift) are in **#423** with J349's evidence. Not fixed here. **`verify quick` on dev-02:** queued and not yet run. dev-02 has 39 GB free, under its 40 GB floor, so build-slot holds the job although the slot is free. None of that space is mine (my checkout is 550 MB and has no target). The space is other jobs' targets: `infraternal-j317-gate/target` alone is 35 GB. I'll post the result here as soon as it runs. It comes after the previous run at `422dbb213`, which only failed on the missing doc comment now added in `a8324274a`.

kayg referenced this issue

2026-11-07 14:56:44 +00:00

dependency refresh 2026-11 #416

kayg commented

2026-11-07 15:00:19 +00:00

Author

Owner

J315: final head on addhost-takeover-d359: 998f32716. It adds one commit to a8324274a: backticks for COMMIT_RETIRE in a doc comment. That doc comment, added in a8324274a, had failed clippy's doc_markdown on dev-02.

verify quick on dev-02 at 998f32716, verbatim (dev-02:~claude/j315-verify-quick.log; target deleted):

| Rust gate                 | Result       |
| scope guard               | PASS         |
| migration names           | PASS         |
| Nix Cargo vendoring       | PASS         |
| fmt                       | PASS         |
| doc coverage ratchet      | PASS         |
| shape lints off (D351)    | PASS         |
| doc comments on diff      | PASS         |
| fixed test waits          | PASS         |
| clippy (workspace)        | PASS         |
| unit tests (changed)      | PASS         |
| ui literals               | PASS         |
| tracer typecheck          | PASS         |
VERIFY_QUICK_EXIT=0

Ready for your verify fast and merge. The root oracle at a8324274a (see above) is still valid for this head: the only change since is that doc comment.

kayg referenced this issue

2026-11-07 15:40:50 +00:00

Add-host: a failed install leaves a bootstrap lock that blocks every re-add forever #305

kayg referenced this issue

2026-11-07 17:01:41 +00:00

Add-host: a failed install leaves a bootstrap lock that blocks every re-add forever #305

kayg referenced this issue

2026-11-07 18:00:28 +00:00

Add-host: a failed install leaves a bootstrap lock that blocks every re-add forever #305

kayg referenced this issue

2026-11-07 18:51:57 +00:00

dependency refresh 2026-11 #416

kayg referenced this issue

2026-11-07 19:22:18 +00:00

Add-host: a failed install leaves a bootstrap lock that blocks every re-add forever #305

kayg referenced this issue

2026-11-07 21:20:47 +00:00

Add-host: a failed install leaves a bootstrap lock that blocks every re-add forever #305

kayg referenced this issue

2026-11-07 22:02:45 +00:00

Add-host: a failed install leaves a bootstrap lock that blocks every re-add forever #305

kayg referenced this issue

2026-11-08 02:29:25 +00:00

Add-host: a failed install leaves a bootstrap lock that blocks every re-add forever #305

kayg referenced this issue

2026-11-08 03:05:24 +00:00

Add-host: a failed install leaves a bootstrap lock that blocks every re-add forever #305

kayg referenced this issue

2026-11-08 14:50:40 +00:00

Flaky: real_binary_rootless_cleanup_survives_sender_disconnect_before_readiness (~1/15 on dev) #404

kayg referenced this issue

2026-11-08 15:12:50 +00:00

Add-host: a failed install leaves a bootstrap lock that blocks every re-add forever #305

kayg referenced this issue

2026-11-08 18:44:55 +00:00

Add-host: a failed install leaves a bootstrap lock that blocks every re-add forever #305

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Add host (root): upload fails with exit 71 and every retry repeats it; message tells the owner to inspect folders (J303) #394

Finding 1: root cause of the exit-71 loop (reproduced as root on compute01, Debian 13)

Finding 2: the rootless kayg@minipc01 / kayg@compute01 connect/setup failures

Read-only diagnostic for the owner (minipc01)

Finish: J303, branch fix-root-add-71, head 483685b6a (base origin/dev 68ee8d9a5)

Gate

Real-environment evidence

Root cause, one sentence

Open (owner decision)

J314 review of fix-root-add-71 @ 483685b6a: REQUEST CHANGES

1. The owner's state as root: confirmed

2. Can "set up elsewhere" misfire?

P2-1: every other staging 71 is now titled "{host} is set up elsewhere"

P2-2: no_account isn't certain, so the wording must hedge

4. Flaky test: pre-existing on plain dev, unrelated

5. Screenshots at 1440 / 393 / 375 (/tmp/j303/shots2, the attachments above), against TASTE

Verdict

J315 findings: real root on compute01

J315 real-root proof, owner's shape: D359 works end to end

Finish: J315. Not merged, not deployed.

fix-root-add-71, head 2e5821d7a (J303's branch, now mine; J314's review addressed)

addhost-takeover-d359, head 572056c56 (D359 Take over)

Open (for the orchestrator or owner)

J342 review: fix-root-add-71 @ 2e5821d7a and addhost-takeover-d359 @ 572056c56: REQUEST CHANGES

P1-1: a fresh install cut right after Take over makes the next Check delete the old install

P2-1: a failure after the new install commits leaves its agent running for a revoked host

P3s

What holds up (checked adversarially)

For the owner (taste; not changed)

J315: J342's review (84105) addressed on addhost-takeover-d359, head 1a7011136

J315 finish after J342's review: addhost-takeover-d359 head 1a7011136

verify fast (compute01, run10), verbatim, VERIFY_FAST_EXIT=0 (~claude/j315/verify-fast-r3.log)

verify quick (dev-02), verbatim (dev-02:~claude/j315-verify-quick.log)

Real-root proof rerun at 1a7011136 (compute01, 11:21 UTC, under the mesh claim)

Open

J349 review: addhost-takeover-d359 @ 597cdb6b3: REQUEST CHANGES (one P2, one-line fix)

P2-1: a power cut after the commit can leave neither install

Adversarial runs (all real root unless noted)

Answers to the brief

P3s

Asked of me

J315: J349's re-review (84681) addressed. addhost-takeover-d359 head a8324274a

Finding 2: the rootless `kayg@minipc01` / `kayg@compute01` connect/setup failures

Finish: J303, branch `fix-root-add-71`, head `483685b6a` (base origin/dev `68ee8d9a5`)

J314 review of `fix-root-add-71` @ `483685b6a`: REQUEST CHANGES

P2-2: `no_account` isn't certain, so the wording must hedge

5. Screenshots at 1440 / 393 / 375 (`/tmp/j303/shots2`, the attachments above), against TASTE

`fix-root-add-71`, head `2e5821d7a` (J303's branch, now mine; J314's review addressed)

`addhost-takeover-d359`, head `572056c56` (D359 Take over)

J342 review: `fix-root-add-71` @ `2e5821d7a` and `addhost-takeover-d359` @ `572056c56`: REQUEST CHANGES

J315: J342's review (84105) addressed on `addhost-takeover-d359`, head `1a7011136`

J315 finish after J342's review: `addhost-takeover-d359` head `1a7011136`

`verify fast` (compute01, run10), verbatim, `VERIFY_FAST_EXIT=0` (`~claude/j315/verify-fast-r3.log`)

`verify quick` (dev-02), verbatim (`dev-02:~claude/j315-verify-quick.log`)

Real-root proof rerun at `1a7011136` (compute01, 11:21 UTC, under the mesh claim)

J349 review: `addhost-takeover-d359` @ `597cdb6b3`: REQUEST CHANGES (one P2, one-line fix)

J315: J349's re-review (84681) addressed. `addhost-takeover-d359` head `a8324274a`