I want to set up a multiple "mode" computer with four separate Centos installations on it. The objective here is to have a "spare computer" that I can boot up into any of four "modes" depending on what I'm swapping it in for a the moment. For example, I want to be able to boot it up as a webserver, or as a fileserver, or as a LTSP-enabled application server. And so on.
I have a computer here with two 300GB hard drives in it, which I plan to split into four 150GB partitions, one for each of my "modes". And I want to install Centos separately and independently into each partition, so I can just tell Grub to boot up using whatever partition I choose.
What is the best way to accomplish this? I have a bad feeling that the drive partitioning tool is going to complain about having multiple / partitions unless I take steps to avoid that.