Can I boot a Mac Pro 6.1 from Mountain Lion 10.8.5?
Will a new Mac Pro 6.1 six-core boot from an external drive (connected via Thunderbolt 2) with a Mountain Lion 10.8.5 boot volume? More generally, what is the oldest version of OS X that the Mac Pro 6.1 will boot from?
Mac Pro, OS X Mountain Lion (10.8.5), MacBook Pro 17"; 10.6.8
