Previous 1 2 3 Next 98 Replies Latest reply: Dec 8, 2013 9:46 PM by Patrick123
Rumboogy22 Level 1 (0 points)

I am getting the following error when running Disk Utility (under ML) on an exteral USB hard drive:

Error: Partition map repair failed while adjusting structures to fit current whole disk size.


I get thsi when I ask Disk Utility to "Repair Disk" at the top level of the disk hierarchy (i.e. not on one of the partitions within the disk but on the disk itself).  I was not getting this error with Lion on the same disk before I upgraded from Lion to ML.


It seems like a bug in ML.  I found websites where they suggest that you just run Lion's Disk Utility and it will show the disk to be fine.


Any thoughts?

MacBook Pro, OS X Mountain Lion
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