I think this is going to crash on amd64 (and other architectures) given that the package you are looking for won't be in the cache.
+ if cache['ubuntu-desktop-raspi'].is_installed: + self._replace_fkms_overlay() -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1923673 Title: Rewrite fkms overlay to kms overlay on upgrade of desktop pi image To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1923673/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
