Is it possible to dual boot with two different hard drives? One Operating system on one and one on the other? I already have Windows XP, and i want to buy another hard drive to install another OS *nix based. I really don't want to dual boot from the one hard drive i have because its only a 40 gig. So I want to know if its possible to dual boot from two different hard drives, an OS on each. I know its possible to have up to four on one hard drive. But i wanna use two diferent ones... one on each.