This bug affects my Dell Precision M4800 too. A current daily Lubuntu Groovy iso file cloned to a USB drive works in BIOS mode and UEFI mode without secure boot, but with secure boot I get this message:
'Error: security violation' and the boot process cannot continue. I double-checked and a Focal iso file works in secure boot in this computer. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1892754 Title: Unable to boot in UEFI+secure boot mode To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1892754/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
