Created attachment 1559723 [details] Xen GRUB entry boot failure error messages Description of problem: The GRUB configuration installed by the xen package is invalid for EFI bootloaders. the GRUB entry is looking for non existent modules, and fails to boot the Xen kernel. Version-Release number of selected component (if applicable): xen-4.11.1-4.cf29 How reproducible: always Steps to Reproduce: 1. setup an EFI bootloader 2. install Xen on Fedora 29 3. reboot on Xen GRUB boot entry Actual results: GRUB boot entry fails to load Xen kernel See the attachment for the error messages Expected results: Xen kernel should have been loaded and booted
This issue is in how grub handles xen rather than the xen package.
Hi, did you ping the Fedora GRUB team ? What's their opinion on this issue ? I have a demo to make using Xen in a few weeks, i would rather not do it using nested virtualization. Thank you for your help.
If you want to workaround the issues with the grub file something like the following might work (though it is probably worth making a back up of the grub.cfg file first) sed -i -e '/insmod module2/d' /boot/efi/EFI/fedora/grub.cfg mkdir /boot/efi/EFI/fedora/x86_64-efi cp -p /usr/lib/grub/x86_64-efi/{relocator.mod,multiboot2.mod} /boot/efi/EFI/fedora/x86_64-efi
Hi Michael, thanks for your answer. I noticed 2 important things: 1) I was missing the grub2-efi-x64-modules package, so I didn't have /usr/lib/grub/x86_64-efi/* on my system. Maybe this was supposed to be installed by Grub or the Xen package ? 2) Even if I install this package, "/usr/lib/grub/x86_64-efi/multiboot2.mod" is absent from the package. However, "/usr/lib/grub/i386-pc/multiboot2.mod" is present. -> I think the GRUB team should look closely at grub2-efi-x64-modules, and understand why multiboot2.mod is missing. -> why do I have to copy it manually in "/boot/efi/EFI/fedora/x86_64-efi" ? shouldn't it be done by grub2-mkconfig ? I just want Xen to work on Fedora, I have invested/lost some hours already with this bug, and other people might be blocked at this moment by this issue. Let's find a way to solve it. Thank you.
Also I upgraded to Fedora 30, and bug is still here.
Fixed in grub2-2.02-91.fc31.
*** Bug 1691559 has been marked as a duplicate of this bug. ***