Enable Hidden Secrets and The Debug Menu In Disk Utility [OS X Tips]



This tip is especially handy for Mac OS X Lion users, but it should even work with Mac OS X Snow Leopard too. You’ll be able to activate a hidden debugging menu and other hidden secrets in the Disk Utility app on your Mac in the folders Applications –> Utilities.

In order to turn on these features launch the Terminal app in Applications –> Utilities.  If Disk Utility is running close it. Now enter the following command and press enter in Terminal:

defaults write com.apple.DiskUtility advanced-image-options -bool true

This will activate the new Debug menu which looks like this:

If you select the option Show Every partition in the Debug menu you’ll be able to see the Lion Recovery HD partition in Disk Utility which is normally hidden from view.  It will look something like this:


  • jjlharrison

    Not working for me. :(

  • Lab

    nor me.

  • Dallas Harris

    nor me either

  • Courtenay Penick

    nor me

  • Dallas Harris

    Try this:defaults write com.apple.DiskUtility DUDebugMenuEnabled 1got it from Here:http://macs.about.com/od/using

  • Dallas Harris

    Try this:
    defaults write com.apple.DiskUtility DUDebugMenuEnabled 1

    Found it here:

  • ErinsDad

    No joy here, either. Re-did, rebooted, too.

  • guest

    me neither

  • Robert

    In the dutch version, it won’t work also.

  • Al

    That command didn’t work for me but this one did.

    defaults write com.apple.DiskUtility DUDebugMenuEnabled 1    

  • Lab

    Um, that worked the first time, Al. Maybe you should have written this article.

  • Al

    I’m not that good. I got the information from here.


  • ErinsDad

    Works!  Thank You!

  • DavidWMartin

    Curious – what OS? It worked great for me on Mac OS X Lion 10.7.2 on an iMac.

  • Brucem40

    Worked for me too. Thanks

  • onegiantleap

    Worked, thanks a lot!

  • Tony

    Also running Lion 10.7.1 on an iMac and worked same way.

  • Tony

    Also running Lion 10.7.1 on an iMac and worked same way.

  • Tony

    Tip didn’t work while yours did just fine.Tks.Running Lion 10.7.1 on an iMac.

  • RichardHenderson

    Yep, like the other commenters, the article didn’t enable debug, but this did (running 10.7.2). Thanks.

  • guru_i

    defaults write com.apple.DiskUtility DUDebugMenuEnabled 1 yep this one worked for me too..Thanks AI