flan
8aa9038226
apply.sh only ever ADDED patches; there was no revert path anywhere. Disabling
removed the opt-in marker and then merely skipped re-applying -- but the overlay
persists for the whole boot, so the previously patched cloud/{snapshot,crud}.py,
cloud_backup/sync.py and _truecloud_nested.py were all still on disk, and
middlewared re-imported them on the restart install.sh performs.
It printed "DISABLED (stock guard restored)" while the feature kept running until
the next reboot. Someone disabling it because they were worried about it would
have believed it was off.
apply.sh now reverts on every not-needed path (opt-out, or superseded by native
support): remove the module FIRST -- every injected block is guarded by
`if _tc_nested is not None`, so the stock guard comes back even if a later step
fails -- then strip the appended blocks from the three patched files.
restic.py also carries a TRUECLOUD_PATCH block but belongs to the providers
module; reverting it would silently break B2 backups, so it is explicitly
excluded. Verified: the three nested files restore byte-for-byte to stock, the
module is removed, and restic.py's block survives.
install.sh --disable also tears the staging tree down first, since those bind
mounts pin ZFS snapshots that could otherwise never be destroyed.
Updating WITHOUT the flag was always correct and is unchanged: the nested module
is never installed into middleware unless explicitly enabled.
109 tests, ruff and shellcheck clean.
86 lines
3.0 KiB
Bash
Executable File
86 lines
3.0 KiB
Bash
Executable File
#!/bin/bash
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# recover.sh — emergency recovery if middlewared won't start after installing truecloud-patch.
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#
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# Run this from the TrueNAS shell (local console, SSH, or debug shell):
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#
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# bash /mnt/tank/truenas-truecloud-patch/recover.sh
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#
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# What it does:
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# 1. Creates a "disabled" file in the repo root — apply.sh checks for this
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# file at boot and skips all patching, so the next boot is always clean.
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# 2. Unmounts any active truecloud overlays so the original /usr files are
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# visible immediately (no reboot required).
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# 3. Restarts middlewared against the unpatched files.
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#
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# To re-enable the patch after investigating:
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# rm /mnt/tank/truenas-truecloud-patch/disabled
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# bash /mnt/tank/truenas-truecloud-patch/patch/apply.sh
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# systemctl restart middlewared
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VERSION="0.3.2"
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PATCH_DIR="$(cd "$(dirname "$0")" && pwd)"
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echo "=== TrueNAS TrueCloud Provider Patch v${VERSION} — Recover ==="
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echo ""
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if [ "$(id -u)" -ne 0 ]; then
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echo "ERROR: must be run as root." >&2
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exit 1
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fi
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if [ ! -d "$PATCH_DIR" ]; then
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echo "ERROR: $PATCH_DIR not found — truecloud-patch may not be installed." >&2
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exit 1
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fi
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touch "$PATCH_DIR/disabled"
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echo "Kill switch set: $PATCH_DIR/disabled created."
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echo "Unmounting truecloud overlays ..."
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_any=0
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for _tag in mw ui; do
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if mount | grep -qF "truecloud-${_tag} on "; then
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_mnt=$(mount | grep "truecloud-${_tag} on " | awk '{print $3}' | head -1)
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if umount "$_mnt" 2>/dev/null; then
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echo " Unmounted: $_mnt"
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_any=1
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else
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echo " WARNING: Could not unmount $_mnt — a reboot will restore original files."
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fi
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fi
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done
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[ "$_any" -eq 0 ] && echo " No overlays active."
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# Nested-snapshot staging trees are bind mounts that PIN their ZFS snapshots, so
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# leaving them mounted blocks those snapshots from ever being destroyed. The
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# overlays above are volatile, but these are not self-healing without a reboot,
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# and recover.sh is expected to work without one.
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echo "Unmounting nested-snapshot staging trees ..."
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# Best-effort: never block recovery. Same tested implementation as uninstall.sh.
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python3 "$PATCH_DIR/patch/truecloud_nested.py" cleanup || true
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# Cancel a deferred boot restart if one is still queued — we restart ourselves.
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systemctl stop truecloud-mw-restart.service 2>/dev/null
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systemctl reset-failed truecloud-mw-restart.service 2>/dev/null
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echo "Restarting middlewared ..."
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if systemctl restart middlewared; then
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echo ""
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echo "middlewared started successfully."
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echo "Your system is back to normal (Storj-only TrueCloud Backup)."
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else
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echo ""
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echo "WARNING: middlewared did not start cleanly even with the patch disabled."
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echo "The problem is unrelated to truecloud-patch."
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echo "Check the system log for details:"
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echo " journalctl -u middlewared -n 50"
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exit 1
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fi
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echo ""
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echo "To re-enable the patch once you have investigated:"
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echo " rm $PATCH_DIR/disabled"
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echo " bash $PATCH_DIR/patch/apply.sh"
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echo " systemctl restart middlewared"
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