Some more questions: - Is "Boot Order Lock" enabled on the affected system? (This is another feature in BIOS/firmware). - Please include the output of 'sudo efibootmgr -v'
** Changed in: grub2-signed (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1805490 Title: Grub2 Failed to install "efibootmgr failed to register the boot entry: Block device required." To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2-signed/+bug/1805490/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs