1 Reply Latest reply: Sep 11, 2011 6:41 PM by William Boyd, Jr.
Patrick Foster Level 1 Level 1

I'm trying to Repair and Verify an external hard drive volume using Disk Utility v.12(346). I am not having issues with the volume, although it has been squirrley in the past.


In Disk Utility, I am able to verify and repair the partition map for the drive (which is a “WD My Book 1110,” 1.5TB).

Below the drive is the volume (which I named "MEDIA."). When I click Verify Disk,

But when I click Repair Disk, here is what is returned, almost immediately:


Verify and Repair volume “MEDIA”

Updating boot support partitions for the volume as required.

Volume repair complete.

Error: Couldn’t unmount disk.


The result seems to be the same immediately after restart, with no apps open other than Disk Utility.


Can anyone help?





iMac, Mac OS X (10.7.1), iMac (24-inch Early 2008)