I found a workaround that doesn't require to disable secure boot: Get the latest memtest (or at least above 6.10) Use these instructions to create a machine owner key (remove the .2 at the end of the extendedKeyUsage line in the config file) and enroll it (you don't need to reboot twice to Ubuntu, reboot once you're done): https://ubuntu.com/blog/how-to-sign-things-for-secure-boot Copy or move the original efi file (or overwrite it, it's your computer) sign the efi of the memtest efi file you got using sbsign according to the above page, replace the current efi file in /boot with the signed one. reboot and enroll the key you made in the shim choose memtest in the grub menu.
-- 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
