Mac OSX - Using Apple Disk Utility

This document details how to use Apple's built in disk utility to attempt minor software repair in OSX.

Apple Disk Utility is a utility built into OSX that identifies and repairs minor problems with the hard drive. If a computer is unable to successfully complete any of these steps it should be booked in for software repair. When checking in make sure to get format approval as the drive will likely have to be formatted or replaced completely.

Mac OS 10.11+

  1. Launch Disk Utility. If you are unable to boot into the users account then you can run Disk Utility from either the recovery partition or from the netboot environment.

  2. Click on the "First Aid" button while selecting the hard drive on the left panel. Click the "Run" option when prompted.

    10.11.1.png 10.11.2.png
  3. If steps 1 and 2 were successful, run first aid again. This time select the partition (not the disk) on the left panel. Click Run when prompted.

    10.11.3.png 10.11.4.png
  4. You will receive a prompt if repair was successful.

    10.11.5.png

If any part of this process fails you will likely have to check it in for a format/reinstall. Remember to get format approval if possible for all software check-in cases.

Mac OS 10.6-10.10

  1. Launch Disk Utility. If you are unable to boot into the users account then you can run Disk Utility from either the recovery partition or from the netboot environment.

  2. Run "Verify Disk" on the hard drive. If verification fails, you will be prompted to attempt "Repair". Only continue to step 3 if repair is successful.

    ScreenShot2015-07-15at2.51.11PM.png
  3. Select the boot partition (usually Macintosh HD) and run "Verify Disk". If verification fails, you will be prompted to attempt "Repair". Only continue to step 4 if repair is successful.

    diskutil2.png
  4. Run "Repair Disk Permissions" on the boot partition. Do NOT select "Verify Disk Permissions".

    diskutil4.png
  5. You will receive a prompt if repair is successful.

    diskutil5.png

Virtually every computer will make at least a couple file permission repairs, so don't worry if you see a handful of repaired files on a perfectly healthy computer.




Keywords:apple disk utility macbook osx mac book os x repair permissions verify partition   Doc ID:53983
Owner:Mike J.Group:DoIT Tech Store
Created:2015-07-15 15:33 CDTUpdated:2016-01-06 11:10 CDT
Sites:DoIT Help Desk, DoIT Tech Store
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