Moving over to snapd as the failure actually hits before any of the LXD migration code runs.
This shows a failure in setting up the environment for the configure hook, likely related to snapd passing /var/lib/lxd into the mount namespace. I don't know if this is still a thing that it does, but if it is, then this bug shows a potential issue with the current approach. ** Package changed: lxd (Ubuntu) => snapd (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1807856 Title: During do-release-upgrade from 18.04 to 18.10: package lxd 3.0.2-0ubuntu1~18.04.1 failed to install/upgrade: new lxd package pre- installation script subprocess returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/snapd/+bug/1807856/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs