I am running 24.10 and the previous workaround would give me no shim error and would immediately return back to the boot menu. I forced a phased grub update on an HP Victus 15-fb1XXX and memtest I had previously signed as previously now works fine.
sudo apt --with-new-pkgs upgrade grub-efi-amd64 grub-efi-amd64-bin grub-efi-amd64-signed grub-efi-amd64-unsigned I also forced the above on an ancient Asus 500A which grub could not boot Windows 10 in 24.10 and now that also works. The old Asus would run memtest without signing because it did not have EUFI secure boot on. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2043907 Title: Memtest gives "bad shim signature" error To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/memtest86+/+bug/2043907/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs