Hi there, could you replace BOOTX64.EFI and shimx64.efi in your ESP with the shimx64.efi in?
http://ppa.launchpad.net/ubuntu-uefi- team/ppa/ubuntu/dists/impish/main/signed/shim- amd64/15.4-0ubuntu3~uefi2/signed.tar.gz This makes the shim only mirror the actual MokListX, and not add the giant vendor DB to it, which should hopefully resolve your issue. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1928434 Title: shim-signed does not boot on EFI 2.40 by Apple To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/shim/+bug/1928434/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs