HD not seen
Hello,
I repaired my iMac 27, Yosemite (defect graphic card)
When I restart, the HD isn't seen, I had to start on an external one.
I created a copy on this external HD and on a Time Capsule, but couldn't restore any (unmounted?!)
How to access my data
iMac (27-inch Mid 2011), OS X Yosemite (10.10)