How did you install this system? If you were using the Ubuntu Desktop 18.10 installer, your system should have had both UEFI and BIOS bootloaders installed for you automatically, and using shim, so you should not get verification errors from the firmware. But your bug report shows that you don't have the shim package installed.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1821630 Title: After enabling Secure Boot - unable to boot Ubuntu To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/shim/+bug/1821630/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs