Ubuntu boot loaders (here grubx64.efi), which are signed for secure boot, internally always refer to grub.cfg in the boot directory "EFI/ubuntu/" in the EFI system partition. If changed e.g. via hex editor, the UEFI boot signature check of it will and must fail.
A fix could be to remove the fixation on "EFI/ubuntu/" in grubx64.efi and instead to detect the belonging "EFI/xxx/grub.cfg" by examination of it's own location "EFI/xxx/". -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1647235 Title: Wrong /boot/grub/grub.cfg processed after change of GRUB_DISTRIBUTOR To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2-signed/+bug/1647235/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
