** Also affects: zsys (Ubuntu Focal)
Importance: Undecided
Status: New
** Changed in: zsys (Ubuntu)
Assignee: (unassigned) => Didier Roche (didrocks)
** Changed in: zsys (Ubuntu Focal)
Assignee: (unassigned) => Didier Roche (didrocks)
** Changed in: zsys (Ubuntu)
Importance: Undecided => Medium
** Changed in: zsys (Ubuntu Focal)
Importance: Undecided => Medium
** Description changed:
- When building other machines or when listing after a revert system
- states, ensure we present the correct order (snapshots taken on this
- filesystem dataset should be before the filesystem dataset itself, as it
- was used afterwards).
+ [Impact]
+ * When building other machines or when listing after a revert system states,
ensure we present the correct order (snapshots taken on this filesystem dataset
should be before the filesystem dataset itself, as it was used afterwards).
+ * Minimize this by a new command, which only updates the LastUsed fields for
used datasets on shutdown.
+ * Shutdown is triggered with ExecStop on the service which updates it on
boot, which is more coherent.
+ * This is covered by new tests cases
+
+ [Test Case]
+ 1. Run zfs get com.ubuntu.zsys:last-used <current root system dataset> ->
note the time
+ 2. Shut down the machine
+ 3. Boot on another machine or on a live session
+ 4. Mount rpool
+ 5. Run zfs get com.ubuntu.zsys:last-used <current root system dataset> ->
check the timestamp is newer that the first one noted.
+
+ [Regression Potential]
+ * A new hidden command is added, triggered when shutting down the zsys-commit
service.
+ * This is covered by new tests.
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https://bugs.launchpad.net/bugs/1881536
Title:
Update LastUsed on shutdown
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