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Fixing the “ACL found but not expected on …” error during OSX Volume Repair

Symptom – Running the OSX Disk Utility program and selecting Verify Disk permissions results is multiple error of ACL found but not expected on [filename]”  While these errors can be safely ignored (ACLs are Access Control Lists) it does make reading the results of the disk verify difficult.    Fix – Fletcher Tomalty has written a python script that can be run from the command line to remove these unexpected ACLs.  The script uses the OSX Disk Utility to find the files and then does a sudo chmod -h -N on each of them. I have used it successfully on Mountain Lion 10.9.9.

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