# /boot/grub/menu.lst
[...]
title    Ubuntu, kernel 2.6.17-10-generic
root     (hd0,0)
kernel   /boot/vmlinuz-2.6.17-10-generic root=/dev/hdb1 ro quiet splash init=/opt/upstart/sbin/init
initrd   /boot/initrd.img-2.6.17-10-generic
boot
[...]