I don't have much to do right now, and I decided to experiment a bit with the possibility of installing an OS on an external hard drive.
I am currently running Windows Vista SP2. I have several Linux ISO's and also an official ISO for Windows 7 Professional.
I have an external hard drive with about 200GB free space on it.
The situation I'd like to achieve is as follows.
Starting situation: Both computer and hard drive are not running. I start the computer without starting the hard drive -> Windows Vista starts.
Let's say I turn on the hard drive before turning on the computer. What I want is the computer to show me all possible OS's that I've installed on the hard drive, allowing me to choose one.
I realize this is risky business, since if the power for the hard drive drops out, you'll have a running computer with no acces to the actuall OS.
So, is this even possible, I wonder?