Public bug reported:
For years, I have been backing up my Ubuntu OS using Acronis True Image
under Windows 10, and restoring it as needed. This has worked well.
Recently, I started experimenting with Ubuntu 20.04 and zfs on root. I
did a full reinstall of Ubuntu on my SSD for this. I naturally backed it
up with Acronis under Windows.
At some point, I decided to restore that backup using Acronis.
At that point, zsys started reporting problems when creating snapshots
during operations such as "apt install" and "apt remove". A simpler test
case is to create a manual snapshot :
root@server10g:/home/madbrain/Desktop# zsysctl save test-snapshot -s
ZSys is adding automatic system snapshot to GRUB menu
ERROR "update-grub" returned an error: exit status 2
root@server10g:/home/madbrain/Desktop#
Is there a workaround for this problem ?
I realize that this is not a common situation, and I should be backing
up and restoring zfs snapshots rather than using Acronis, but Acronis
has the advantage of having a GUI, and zsys is still experimental. So, I
would expect a True Image restore of Ubuntu to still work.
Unfortunately, that's not the case. My guess is that there was some sort
of partition identifier that was changed during the backup/restore
process in Acronis, but I'm not sure what.
** Affects: zsys (Ubuntu)
Importance: Undecided
Status: New
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Packages, which is subscribed to zsys in Ubuntu.
https://bugs.launchpad.net/bugs/1947971
Title:
Zsys fails in update-grub after disk is restored with Acronis True
Image
Status in zsys package in Ubuntu:
New
Bug description:
For years, I have been backing up my Ubuntu OS using Acronis True
Image under Windows 10, and restoring it as needed. This has worked
well.
Recently, I started experimenting with Ubuntu 20.04 and zfs on root. I
did a full reinstall of Ubuntu on my SSD for this. I naturally backed
it up with Acronis under Windows.
At some point, I decided to restore that backup using Acronis.
At that point, zsys started reporting problems when creating snapshots
during operations such as "apt install" and "apt remove". A simpler
test case is to create a manual snapshot :
root@server10g:/home/madbrain/Desktop# zsysctl save test-snapshot -s
ZSys is adding automatic system snapshot to GRUB menu
ERROR "update-grub" returned an error: exit status 2
root@server10g:/home/madbrain/Desktop#
Is there a workaround for this problem ?
I realize that this is not a common situation, and I should be backing
up and restoring zfs snapshots rather than using Acronis, but Acronis
has the advantage of having a GUI, and zsys is still experimental. So,
I would expect a True Image restore of Ubuntu to still work.
Unfortunately, that's not the case. My guess is that there was some
sort of partition identifier that was changed during the
backup/restore process in Acronis, but I'm not sure what.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/zsys/+bug/1947971/+subscriptions
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