Public bug reported:

To reproduce this bug, take the following steps

Install Ubuntu 20.04.3 using a ZFS-based root.
Boot into it and get past the initial startup screens.

Install a package like htop to force the creation of a ZSys snapshot and
for additional confirmation in the user space, create a file on the
desktop.

You should see the file and htop should be able to run.

Reboot and hit escape to enter the grub screen. Choose the history menu
and choose the snapshot you just created. Then hit enter and then choose
the option to revert system and user data and then enter again.

Most of the time, this will work fine, but not absolutely *every* time.
Every so often, the system will hang after the last step (forcing you to
hard reboot), and the snapshots may or may not have been reverted.

One thing I noticed while doing this on a fresh install is that other
part of the system (the upgrade software) creates its own snapshots.
It's not clear if these have to be there to trip the system up into not
reverting. I think I reproduced once without them.

Note this is different from bug
https://bugs.launchpad.net/ubuntu/+source/zsys/+bug/1949490, which
applies to ordinarily created snapshots.

** Affects: zsys (Ubuntu)
     Importance: Undecided
         Status: New

-- 
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1950330

Title:
  Grub doesn’t fully revert Zsys snapshots

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/zsys/+bug/1950330/+subscriptions


-- 
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

Reply via email to