Q: New 27" iMac with Fusion drive will not boot from external devices.
I just recieved the new 27" iMac with the Fusion drive yesterday. I've tried several restore volumes, and bootable dirves (USB, ThumbDrive, and Firewire Drive with Thunderbolt adapter) and none of my standard externals will boot this new machine. I have it sitting next to an iMac from late 2011 and was trying to use my latest Carbon Copy Clonner drive image to boot and install this system. Nothing boots it. I restore my development machines all the time this way, and I've never once ran into an issue where I couldn't get a new Mac imaged and running in under an hour.
The next thing I tried is booting into Target Disk mode and connecting to the older iMac, I cloned the data over, and now the new iMac will not even boot from it's own drive. What is the deal here?
iMac, OS X Mountain Lion (10.8.2), fusion, not booting, external drive
Posted on Dec 27, 2012 1:05 PM