OK. Here's the situation. HDD 1 is a WinXP HDD HDD2 is a redhat 7.2 HDD Currently, you have HDD2 as the only HDD on the system, as primary master, linux is the only OS. Now, I want to make HDD1 as the primary master and dual-boot that way. I can already boot into XP, but what do I have to change to be able to boot into linux as well? I read through the dual boot guide but that was kinda not what I was looking for, since it is assuming you already have an OS installed and are doing a fresh install; in this case both OS's were installed seperately at seperate times. Again, originally HDD2 was primary master, now it is primary slave, and HDD1 is primary master with WinXP. I was told it was quite easy, how would I go about doing this? Thanks a lot.