I have two hard disks sda and sdb. I have Windows XP installed on sda2 and Ubuntu 10.04 on sdb5. When I installed Windows XP, Ubuntu stopped booting. I tried to repair grub2 from a Live CD unsuccessfully.
Now I have completely messed up my MBRs of both HDDs. I just want to configure grub2 to load both OSes in dual boot mode.