This problem is Ubuntu-specific, caused by that line: https://git.launchpad.net/ubuntu/+source/grub2/tree/debian/patches/ubuntu-linuxefi.patch#n2105
That line was added by that commit: https://git.launchpad.net/ubuntu/+source/grub2/commit/?id=6a814c759e10feafb40c3669be30aa51eb5ce39b @cyphermox, this prohibits loading 32bit kernels under UEFI, would it be possible to revert it? For example, before this patch, I was able to boot lubuntu-18.04-desktop-i386.iso under UEFI using https://github.com/alkisg/liveusb; after the patch, I can't. True, the use cases for booting 32bit kernels under UEFI are limited, but is there a reason to have an Ubuntu-specific patch to block it when it works fine? ** Changed in: grub2 (Ubuntu) Importance: Undecided => Low ** Changed in: grub2 (Ubuntu) Status: New => Triaged ** Changed in: grub2 (Ubuntu) Assignee: (unassigned) => Mathieu Trudel-Lapierre (cyphermox) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1876737 Title: GRUB refuses to boot a 32-bit kernel when in EFI mode To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1876737/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
