[Bug 1970066] Re: (Encrypted) ZFS breaks 22.04 installation

[Dimitri John Ledkov]

** Also affects: ubiquity (Ubuntu)
   Importance: Undecided
       Status: New

** Changed in: ubiquity (Ubuntu)
       Status: New => Fix Released

** Changed in: ubiquity (Ubuntu Jammy)
       Status: New => Fix Released

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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

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