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View Full Version : How to check if backup is bootable


Scott Kathe
09-30-2009, 08:33 AM
I've got my Super Duper backup up on a 500 GB WD My Book with a firewire and from what I've just found out I'm concerned that it isn't bootable from my intel iMac. How can I find this out? If I swap the firewire with a USB cable will it then be bootable?

Scott

dnanian
09-30-2009, 09:06 AM
Did you try actually starting up from it, Scott?

Scott Kathe
09-30-2009, 09:32 AM
That's the question. I turn on the iMac and hold down what key? Or am I thinking about this all wrong?

dnanian
09-30-2009, 09:41 AM
Did you try selecting it in the startup disk preference pane?

Scott Kathe
09-30-2009, 12:21 PM
Did you try selecting it in the startup disk preference pane?

Sure, I can do this and see how it goes. But I would really like to simulate what would happen if the internal hard drive in the iMac fails. Can I run the iMac with a dead internal drive and the backup on the external drive?

Scott

dnanian
09-30-2009, 12:59 PM
Then you hold down the Option/Alt key and select the disk from the menu.

Scott Kathe
09-30-2009, 01:58 PM
Thanks Dave, that was exactly what I was looking for.