I was able to work around this. Warning: not for the faint of heart and not a supported upgrade path.
- Make a backup. Really. - Install the plucky version of the debs from zfsutils-linux. I rebuilt these from source against oracular just in case there was library ABI mismatches. - Install the generated zfs-dkms package in order to use the new kernel module. - At this point, initramfs has been updated by no update-grub has happened so no freeze. Restart. - Run `zfs --version` and verify userspace and kernel module are 2.3.1 series. - Try to run the upgrade. It will refuse. - In an elevated shell (`sudo -i`) `cd` to the directory where the updater unpacked itself: `/tmp/ubuntu-release-upgrader-XXXXX`. - Edit `DistUpgradeQuirks.py` and comment out the call to `self._test_and_fail_on_zfs()`. - Run `./plucky` (add --frontend=DistUpgradeViewGtk3` or `./plucky --frontend=DistUpgradeViewKDE` as desired). - Run `dpkg --configure -a` or whatever as many times as necessary to fix any failures (I had a couple). - Restart. I was able to get upgraded this way, but please do not attempt this unless you are prepared to deal with a broken or incomplete upgrade. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2110891 Title: System freeze on release upgrade 24.10 oracular to 25.04 plucky with root fs on ZFS To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2110891/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
