I had ubuntu 12.04 alongside windows XP and was working fine. Then I did following, 1. Reinstall windows XP and I lost grub 2. Booted using Ubuntu live CD and installed boot-repair 3. Did boot-repair with 'recommended repair'
Now the notebook boots with grub, but windows XP option is missing.
http://paste.ubuntu.com/6649686/
thanks, Aniket