Hi
grub2 is not able to find initramfs image for XEN Dom0 on Fedora 16. Probably Rawhide is affected as well. Patch included.
https://bugzilla.redhat.com/show_bug.cgi?id=728775 This is critical for grub2-mkconfig -o /boot/grub2/grub.cfg to work properly on Fedora 16 / rawhide.
Another issue is that kernel upgrade doesn't install XEN Dom0 grub2 lines ("--class xen"). but at least grub2-mkconfig command is able to fix the problem.
Regards, Marko Ristola