I just pinned it down. ZFS does not use systemd mount units. Both zfs(.target) and snapd(.service) are wanted by multi-user.target.
Snaps are mounted before the zfs dataset is mounted by zfs- mount.service, resulting in non-mounted snaps and therefore broken snaps. I have not yet found a working solution to adapt the unit files to stop this from happening. But this definitely is the issue. ** Summary changed: - snaps are broken when /var/lib/snapd is a mounted directory + snaps appear broken when /var/lib/snapd is a zfs dataset -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1750059 Title: snaps appear broken when /var/lib/snapd is a zfs dataset To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/snapd/+bug/1750059/+subscriptions -- ubuntu-bugs mailing list email@example.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs