This may be a rather basic question, but I've never actually done this before they way I'm thinking and part of it has confused me. I already have back ups of all my cabs hard drives in disc image format. It's a good job I did because one of the drives died on me this weekend (at an exhibition as well

) and I'd have a hell of a job trying to remember or reconfigure everything exactly as it was.
So my question is this.... is it possible for me to build up a backup drive that is partitioned around 6 times with each partition having a plug and play ready backup of a cabinet? So basically this weekend I could have plugged in such a drive and have the BIOS boot from partition 3 for example? The only issue that concerns me is that wouldn't each partition have to be labelled as a :C/ drive? But then how do you distinguish between each partition in the BIOS?
This may seem very simple to some people but I just want to ensure I'm doing it right. Or can I even do it this way?