View Full Version : Cannot run MacBook PRO HDD on MacBook Retina

Nov 26, 2012, 05:19 AM

I have the harddisk of my old 2010 Macbook Pro and if I connect it with any other macbook I can boot the mac from that external device while holding 'alt' while starting the machine.. guess you know that. But I have got my new Macbook Pro Retina and it shows me just a restriction sign when I want to boot the retina machine from the external old macbook pro hdd.

What can I do to start it anyways?


Nov 26, 2012, 07:19 AM
The Retina runs a special version (build) of Mountain Lion that you do not have on the Pro... so it won't work.

Nov 30, 2012, 08:44 PM
Thats a pity.. but thanks anyways :)