jethro779 wrote:
I upgraded 2 iMac 27", one a Retina, and one a 2011, plus a MacBook Pro. The 2011 iMac wiped the hard drive when I updated. the other 2 did just fine. I did a D.O.D. erase and reloaded the 2011 and reloaded from a Time Machine backup and all is fine. I am not sure that I didn't make a mistake on the 2011 so all in all I can't say I had any problems.
I get that. I went a bridge to far with an update on a 2004 vintage Mac Pro. Now it is a Door stop until I can get it to Apple. Above my pay grade.