Comment 180 for bug 477169

menuentry "Ubuntu, Linux 2.6.31-16-generic" {
 insmod ntfs
 set root=(hd0,2)
 search --no-floppy --fs-uuid --set 18f86825f868037c
 loopback loop0 /ubuntu/disks/root.disk
 set root=(loop0)
 linux (hd0,2)/boot2/vmlinuz-2.6.31-16-generic root=/dev/sda2 loop=/ubuntu/disks/root.disk ro quiet splash
 initrd (hd0,2)/boot2/initrd.img-2.6.31-16-generic

the part before those 2 lines remains the same as before..