I have a mac mini server running OSX server 10.6.8 It has 2 internal drives and no optical drive. I have no need to run the server OS any more and want to install and run Mountain Lion on the boot disc. I tried to install Lion a few months back but the App store wouldn't let me stating I needed to install Lion server so I didn't bother. Can anyone kindly tell me the best and easiest way of doing this. I was thinking of cloning the boot drive onto the 2nd internal drive then formatting the boot disc and then (from the cloned disc) downloading ML and installing it on the reformatted boot drive but not sure whether this would work as the App store would still see the cloned disc as a 10.6.8 server. Is there a way?