Pkg xen devel - Dec 2010 - Bug#599243: xen-utils-4.0: pygrub does not understand grub2 partition types (e.g. (hd0, msdos1) instead of (hd0, 1))

Please apply that patch to squeeze, otherwise you will not be able to
boot even a standard squeeze installation! Since there is no pv-grub in
squeeze I think it's quite important to fix it.

Cheers,
Darkbasic