`restore system` reported
✓ Success System config restored to: /libreportal-system/restore/system-config
for a directory that did not exist. Nothing had been written — on the step the
whole restore ordering depends on, since the system config carries every other
backup location's credentials.
Restore stages through $SYSTEM_DIR, which the manager owns, but the thing that
writes into the staging tree is restic, and runBackupOp runs it as the container
user. Both call sites created the directory as the wrong principal, in opposite
directions:
backupRestoreSystemConfig runFileOp mkdir -> container user; denied on the
0751 manager-owned restore_dir, and unchecked
storageRestoreAppTo runInstallOp mkdir -> manager; restic could then
not create anything beneath it
Restic reports a permission denial as "ignoring error ..." and still exits 0, so
the callers' success checks were satisfied either way.
libreportal-ownership gains restore-stage (creates it cowner:MANAGER 0750 —
owner writes, manager traverses to confirm and review) and restore-unstage
(removes it; neither principal can, so staging trees simply accumulated). Both
confine the path to one component directly under the restore/migrate area.
footprint_version 8 -> 9.
backupRestoreSystemConfig now verifies the tree landed as the user that wrote
it, because the manager cannot read inside its own staging directory.
Verified on a live install: system config stages 57 real files, and the
relocation branch of storageRestoreAppTo ran for the first time — speedtest
restored from a snapshot taken at /libreportal-containers/speedtest into
/libreportal-alt/speedtest via stage-and-move, staging cleaned up afterwards.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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