I am trying to dual boot XP with Ubuntu in an old Dell if it is possible. I have already installed both on ~10GB partitions of my 20GB drive, but I have run into a big problem: I have no idea how to get back to Ubuntu. It's probably a miniscule problem; just every time I boot up it automatically starts XP. When I was installing, it told me the ubuntu partition would be "inferior" or something like that and I could change it. Any ideas of what to do?