Comment 7 for bug 671097

Apparently pygrub supports reading grub2 config files (/boot/grub/grub.cfg).
This patch would affect that scenario if the user were using pygrub with grub2 support to load the linux-ec2 kernel in an Ubuntu guest. After installing the updated grub-pc, the linux-ec2 kernels would no longer be listed in /boot/grub/grub.cfg, and would then not be seen by pygrub.

Again, I think this is likely a very small use case if any. More than likely people are not using linux-ec2 kernel and pygrub in xen domU.