Ayuda con el grub

Buenas lista

Estoy teniendo problemas bastante serios con el grub, resulta que me instale una debian pero sin instalador, y al intentar cargarla no me deja. Posteo el menu.lst a ver si alguien sabe que puede estar fallando

default        0

timeout        5

title        Ubuntu 7.10, kernel 2.6.22-14-generic
root        (hd0,1)
kernel        /boot/vmlinuz-2.6.22-14-generic root=UUID=0c3d2f81-bc40-48c6-b891-4bcdb48315fa ro quiet splash
initrd        /boot/initrd.img-2.6.22-14-generic
quiet

title        Ubuntu 7.10, kernel 2.6.22-14-generic (recovery mode)
root        (hd0,1)
kernel        /boot/vmlinuz-2.6.22-14-generic root=UUID=0c3d2f81-bc40-48c6-b891-4bcdb48315fa ro single
initrd        /boot/initrd.img-2.6.22-14-generic

title        Ubuntu 7.10, memtest86+
root        (hd0,1)
kernel        /boot/memtest86+.bin
quiet

title        debian Sid,kernel 2.6.22-3-amd64
root        (hd0,6)
kernel        /boot/vmlinuz-2.6.22-3-amd64 root=/dev/sda7 ro quiet
initrd        /boot/initrd.img-2.6.22-3-amd64
quiet

# 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        Microsoft Windows XP Professional
root        (hd0,0)
savedefault
makeactive
chainloader    +1

Salut!