Interestingly, this issue keeps coming back. Seems that each consecutive update of grub-efi is suffering from it. Each time it happens, the same apt purge helps.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1891721 Title: grub-multi-install attempts to mount a non-existing device after migrating to another system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1891721/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs