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15 Mar, 2012 11:04 AM
Currently I'm planning on upgrading from Leopard to Lion (via Snow
Leopard) on both an iMac and MacBook Pro (both Intel), but before I
proceed with the OSX upgrade I wanted to back everything up. Thus
far I have partitioned an external firewire drive (G Drive - one
that is bootable), and cloned each machine using Carbon Copy Cloner
to it's own partition (both GUID). There is plenty of space left
over on each partition, and is Mac OS Extended (Journaled).
The issue - I can boot the OS X from the external drive on the
MacBook Pro but not on the iMac.
When I restart and hold down Option on the iMac the only drive that
appears is the HDD, not the other two drives that are visible if I
boot up on the MacBook Pro. On the iMac in System Prefs >
Startup Disc I can see all 3 drives but when I select it and
restart, the machine freezes on the grey loading screen and goes no
Not that it should make a difference, but there is a 3rd
partition on the external drive that is currently empty (for extra
I've read through and tried the additional steps noted in the help
section on CCC site, including trying to boot using a USB
connection for the drive and resetting PRAM.
Any help is greatly appreciated - I can't find any relevant
answers elsewhere. Thanks,
2 Posted by Mike Bombich on 15 Mar, 2012 04:46 PM
That has been my experience with the G-Drive enclosure as well
-- bootability is spotty. If you have exhausted the suggestions in
the "Help! My clone won't boot" section of the documentation, I'm
afraid I don't have anything additional to add.
Mike Bombich closed this discussion
on 11 Apr, 2012 01:14 PM.
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