Previous 1 2 Next 18 Replies Latest reply: Mar 22, 2013 3:20 AM by Nemrod
phenyl007 Level 1 (0 points)

Hi All,


I am trying to format a 3TB WD Elements (USB 2) external HD, GUID, 1 Partition Mac Extended Journaled. The formatting goes ok.

If I click on the "3TB WD Ext HDD 1021 Media" on the left in Disk Utility and hit "verify disk", I get the following error message:


"the partition map needs to be repaired because there's a problem with the EFI system partition's file system"

A 'repair disk' goes through without hitch, but if I hit 'verify disk' again, I get the same error.


I wonder if I can just disregard this or if I will encounter problems somewhere down the line.



Thank you very much for your help.



(Verify of the actual partition does not yield any problems)

MacBook Pro, Mac OS X (10.7)
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