root@ubuntu:/media# update-grub
Generating grub.cfg ...
using custom appearance settings
Found linux image: /boot/vmlinuz-3.2.0-27-generic-pae
Found initrd image: /boot/initrd.img-3.2.0-27-generic-pae
Found memtest86+ image: /boot/memtest86+.bin
Found Microsoft Windows XP Professional on /dev/sda1
Found Microsoft Windows XP Home Edition on /dev/sda2
Found Windows on /dev/sda4
done