Ok, So here's my situation... I have a 20TB JBOD setup with 7 drives, All WD Red 3 and 4 TB. I am running windows 7 Ultimate, i7-4770k, 32GB Ram, 12 HDD and 1 SSD, With 2 JBOD Drives and a system ...
It seems there are different "versions" of Yosemite, based on the hardware. For example, I have a late 2013 Retina MBP and I wanted to build a bootable external drive for emergencies and to do repairs ...