Hey all, I have the 2012 i7 Mac mini with an apple 256G SSD inside. I want to make a clean install of mountain lion on an external SSD to do some debugging of an audio system but I can not get it to work. I can clone my system to the external but I really want an OSX only clean install... I have tried... 1) Boot from recovery disc on internal drive and do a operating system install on external. It gets all the way to the end of the install and then goes to reboot. Every attempt ends in the screen going blank and a message coming up that the machine had shutdown and will restart (in four languages)... loop --- loop -- loop 2) Cloned the system to external -- boot to recovery partition of external -- disk utility to erase main partition in external -- do clean install -- same result as above I am stumped!!!! The external is a Samsung 830 drive in a Silver River 5G USB3 case. Works perfect on cloned drive Any help appreciated! THanks!