Title: ZFS Upgrade Issue on Ubuntu 25.04
Description:
I am experiencing system freezes during the upgrade process from Ubuntu 24.10
to 25.04 when using ZFS as the root filesystem. The upgrade process hangs, and
I am unable to proceed.
Steps to Reproduce:
Attempt to upgrade from Ubuntu 24.10 to 25.04 using the command:
bash
sudo do-release-upgrade
Observe the system freeze during the upgrade process.
System Information:
Ubuntu Version: 24.10
ZFS Version: 2.2.6-1ubuntu1.2
Additional Information:
All ZFS packages are installed from the official Ubuntu repositories.
The issue occurs consistently during the upgrade process.
Please investigate this issue as it affects users relying on ZFS for their root
filesystem.
Instructions to Submit
Go to the Ubuntu bug reporting page on Launchpad.
Click on "Report a bug."
Copy and paste the formatted text above into the issue description.
Review the information to ensure it is accurate.
Submit the issue
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Packages, which is subscribed to zfs-linux in Ubuntu.
https://bugs.launchpad.net/bugs/1970066
Title:
(Encrypted) ZFS breaks 22.04 installation
Status in snapd package in Ubuntu:
Incomplete
Status in ubiquity package in Ubuntu:
Fix Released
Status in zfs-linux package in Ubuntu:
Incomplete
Status in snapd source package in Jammy:
Incomplete
Status in ubiquity source package in Jammy:
Fix Released
Status in zfs-linux source package in Jammy:
Incomplete
Bug description:
On a freshly installed 22.04.0 amd64 Desktop with (encrypted) ZFS, removing
the Firefox snap breaks:
* the current gnome-shell session - it returns to gdm3 login prompt
* snapd - all snaps are marked 'broken'
* dpkg - dpkg status database is lost
Reproducible on dedicated hardware and VMs. Not reproducible on a
default (/ on ext4) installation.
Video showing the whole process on a freshly installed system:
https://bugs.launchpad.net/ubuntu/+source/snapd/+bug/1970066/+attachment/5583102/+files/1970066.webm
journalctl -b output:
https://bugs.launchpad.net/ubuntu/+source/snapd/+bug/1970066/+attachment/5583100/+files/1970066_journal.txt
/proc/self/mountinfo:
https://bugs.launchpad.net/ubuntu/+source/snapd/+bug/1970066/+attachment/5583101/+files/1970066_mountinfo.txt
Installation procedure:
- Minimal installation
- Tick 'download updates'
- Tick 'install third party software'
- Erase disk and use ZFS + encrypt
- Require password to log in
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/snapd/+bug/1970066/+subscriptions
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