sudo gedit /boot/grub/menu.lst
title Ubuntu 8.04.1, kernel 2.6.24-21-generic
root (hd0,6)
kernel /boot/vmlinuz-2.6.24-21-generic root=UUID=83c560cb-b4f2-4c6e-977b-179c21a1d90b ro vga=791 splash
initrd /boot/initrd.img-2.6.24-21-generic
quiet
title Ubuntu 8.04.1, kernel 2.6.24-21-generic (recovery mode)
lock
root (hd0,6)
kernel /boot/vmlinuz-2.6.24-21-generic root=UUID=83c560cb-b4f2-4c6e-977b-179c21a1d90b ro single
initrd /boot/initrd.img-2.6.24-21-generic
#title Ubuntu 8.04.1, kernel 2.6.24-19-generic
#root (hd0,6)
#kernel /boot/vmlinuz-2.6.24-19-generic root=UUID=83c560cb-b4f2-4c6e-977b-179c21a1d90b ro vga=791 splash
#initrd /boot/initrd.img-2.6.24-19-generic
#quiet
#title Ubuntu 8.04.1, kernel 2.6.24-19-generic (recovery mode)
#lock
#root (hd0,6)
#kernel /boot/vmlinuz-2.6.24-19-generic root=UUID=83c560cb-b4f2-4c6e-977b-179c21a1d90b ro single
#initrd /boot/initrd.img-2.6.24-19-generic
#title Ubuntu 8.04.1, memtest86+
#root (hd0,6)
#kernel /boot/memtest86+.bin
#quiet
### END DEBIAN AUTOMAGIC KERNELS LIST
# This is a divider, added to separate the menu items below from the Debian
# ones.
#title Other operating systems:
#root
# This entry automatically added by the Debian installer for a non-linux OS
# on /dev/sda1
title Windows Vista/Longhorn (loader)
root (hd0,0)
savedefault
makeactive
chainloader +1