How to Disable Journaling?

Discussion in 'OS X' started by PaulFXH, Oct 22, 2007.

  1. macrumors member

    Aug 31, 2007
    Using a new MacBook (C2D, 2.16 GHz) but am multibooting with number of Linux OSes.
    To make OS X writable from Linux, I need to remove journaling from the OS X partition.
    So, I go to Disk Utility and here's the info available about my Mac OS X partition:
    OK, so it looks like it's journaled so I should be able to disable journaling, right?
    So, now I go to File and look for a Disable Journaling option. But it's not there. What's there is Enable Journaling but even this is grayed out.
    Would appreciate some advice on how to turn off journaling.
  2. thread starter macrumors member

    Aug 31, 2007
    OK, just found out how to get a Disable Journaling option. You need to hold the Option (or Alt) key while clicking on File.
  3. macrumors member

    Feb 12, 2009

    I just found your link and had same problem :)
  4. macrumors newbie

    Sep 12, 2011

    This is an insanely bad interface, and a useful answer, so here are some search terms to help people find this post. Journaling enabled, journaling on, turn off journaling, osx lion.
  5. macrumors newbie

    Sep 29, 2011
    Just to clarify, the answer is to hold down Option while clicking on the "File Menu".
    I was looking all over for a button or a tab that said "File" - it's the "File Menu". It's so strange it bears very accurate clarification ;-)
  6. macrumors newbie

    Mar 30, 2010
  7. macrumors newbie

    Jun 9, 2012

    This was ultimately the info I needed... thanks everyone for chiming in on this... Mac to Linux (writable) is often difficult to deal with, and you all nailed this one on the head for me.
  8. macrumors newbie

    Jun 22, 2012
    Testing shows that this information may no longer be valid in Mountain Lion, so I thought I'd post a working solution. I'm afraid it involves the Terminal and Disk Utility together, and requires Administrator privileges.

    1) Launch Disk Utility, select the partition in the sidebar from which you wish to remove Journaling.
    2) Get Info… on this partition (File > Get Info or Command-i)
    3) Note the Disk Identifier value, of the type diskXsY, where X and Y are numbers
    4) Now, unmount this partition by clicking the Unmount button in the toolbar
    5) Launch Terminal, and type the following:
    sudo diskutil disableJournal force diskXsY
    Replace diskXsY with the value you obtained in (3), then hit Enter.
    6) Authenticate with the login password of the Admin user you're using - NB: nothing will appear as you type the password: this is normal.
    7) You may receive the following error message:
    "An error occurred journaling the file system: The underlying task reported failure on exit (-69860)" - ignore it.
    8) Safely eject the whole disk containing the partition you just disabled journaling on, and then re-attach it and mount the partition you just modified.

    Journaling should now be permanently disabled on the partition in question. You can verify this by typing mount in the Terminal and hitting Enter, or by Getting Info in Disk Utility (as in (2) above).

    Phew, what a hullabaloo!

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