[ubuntu-za] missing maverick

[Miles]

Hi all. I have a drive partitioned with a 50g partition and have win xp
on it as well as Maverick running alongside. On the second partition
100g I have partitioned it to /  /boot   and /home and installed Kubuntu
Natty there. Now on booting I get the choice of Natty or xp. does anyone
have any idea how I can get Maverick to show as well please. When I run
mount from Natty I get

wolf at wolf:~$ mount
/dev/sda5 on / type ext4 (rw,errors=remount-ro,commit=0)
proc on /proc type proc (rw,noexec,nosuid,nodev)
none on /sys type sysfs (rw,noexec,nosuid,nodev)
fusectl on /sys/fs/fuse/connections type fusectl (rw)
none on /sys/kernel/debug type debugfs (rw)
none on /sys/kernel/security type securityfs (rw)
none on /dev type devtmpfs (rw,mode=0755)
none on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
none on /dev/shm type tmpfs (rw,nosuid,nodev)
none on /var/run type tmpfs (rw,nosuid,mode=0755)
none on /var/lock type tmpfs (rw,noexec,nosuid,nodev)
/dev/sda7 on /boot type ext4 (rw,commit=0)
/dev/sda8 on /home type ext4 (rw,commit=0)

And sudo os-prober doesnt see maverick either
Thanks guys
Miles