Comment 4 for bug 586756

I'm using the 'ec2' kernels that come with lucid, which show the same problem. They have CONFIG_XEN_UNPRIVILEGED_GUEST set, and the update-grub script only checks for CONFIG_XEN_PRIVILEGED_GUEST.

There is a second (small) bug on line 1416 by the way:

 if `echo "$xenKernels" | grep -q "$kern "` || `echo "$kern" | grep -q "xen"`; then

That space after $kern in the first grep -q command causes the last kernel to always be dropped off the list, which is not desirable. It even means that if there's only one Xen kernel found, it will never be added to menu.lst.