I was able to fix this error by setting the "esp" flag on my EFI partition with /usr/sbin/parted as described at https://askubuntu.com/a/1311360
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1940723 Title: GRUB (re)installation failing due to stale grub-{pc,efi}/install_devices To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1940723/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
