2 Replies Latest reply: Jan 12, 2013 2:28 PM by Katie 'OConnell
Katie 'OConnell Level 1 Level 1
Mac OS X

I am having the problem mentioned in this article but the solution is not working for me since - when I follow all the steps and try to re-partition the external HD - I get the error message:


Partition Failed:


Particition failed with the error: Could not unmount disk.


Trying to reformat a BRAND NEW OWC external HD with 3TB of space, connect via Firewire 800.



Mac Pro Xeon 64-bit Workstation, Mac OS X (10.6.8), 16 GB 1333 MHz DDR3
Solved by Katie 'OConnell on Jan 12, 2013 2:28 PM Solved

Yes, thank you!

Reply by Klaus1 on Jan 12, 2013 10:12 AM Helpful

Does this help?


How to partition a Hard Drive:



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