image2disk rewrote root= in the boot loader entries but kept their
linux and initrd paths. Those come from where the image was built: in a
diskless image from imgutil they carry the scratch directory of the
server (grub2-mkrelpath sees its bind mount), and a /boot/ path does not
match the separate /boot filesystem image2disk creates for such images.
grub then fails with "you need to load the kernel". Make the paths
relative to the boot filesystem of the target.
Markus Hilger
1d8d4f3077