I have a FW 400 external hard drive from OWC connected to a new aluminum
iMac. Everything works fine, but the iMac won't boot from the external
drive. Any solutions?
Shawn Hirn - 26 Sep 2007 00:59 GMT
> I have a FW 400 external hard drive from OWC connected to a new aluminum
> iMac. Everything works fine, but the iMac won't boot from the external
> drive. Any solutions?
Back up the hard drive if you need the data on it, then reinstall OS X
from the DVD that came with your iMac.
J.J. O'Shea - 26 Sep 2007 01:20 GMT
> I have a FW 400 external hard drive from OWC connected to a new aluminum
> iMac. Everything works fine, but the iMac won't boot from the external
> drive. Any solutions?
How is the external drive partitioned and formatted? If the iMac is a _new_
one, it presumably must be an Intel iMac, which means that you should use the
GUID partition method to partition it. You're also going to need to have it
formatted HFS+. You can set this up using Disk Utility.

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aRKay - 26 Sep 2007 19:31 GMT
> I have a FW 400 external hard drive from OWC connected to a new aluminum
> iMac. Everything works fine, but the iMac won't boot from the external
> drive. Any solutions?
I have a 24-inch 2.4 GHz iMac and it will boot from a generic firewire
400 external drive that I had backup with SuperDuper.
You were not very specific on what was used to create the OS on the OWC
drive and that may be your problem. Unless it has been 'blessed' as a
boot drive, it will not start you iMac.