OK I have 2 40 gig Maxtors one 7200rpm ata133 and the other 5400 rpm ata100. I have Windows XP Pro installed on the first HDD and Linux Redhat 7.2 installed on the other one. How can I run a dual boot? I don't know how at all. I can get into Linux by using the boot disk and then typing "linux /dev/hdb" at boot: screen which the boot disk brings up. I want to be able to turn the computer on and it ask me which OS do I want to Run. Like a multi boot on the same HDD. But I do not know how to do a Multi boot with two HDD's. Someone pleases help me out.