Low Disk Space Incorrectly reporting on Apple Mac

Posted on 2012-08-14
Last Modified: 2012-08-15
I have an Apple Mac running OSX 10.8.  I keep getting a message telling me that my system is running low on disk space.

When I check using the disk utility it reports that I have 134GB free.

I have run repair permissions. I have also done a complete time machine backup.

Any assistance would be appreciated
Question by:johnstockbridge
    LVL 13

    Expert Comment

    Do you have 134GB total free space? I see you've done a time machine backup, so you'll have multiple disks.

    How much space do you have on your startup hd?

    Can you also run disk utility to erase free space? So the segments will come together.

    Author Comment

    Thank you for your prompt response.

    I have 134GB total free space on my startup HD.

    My time machine backup was done to a separate USB HD.

    Am running Erase Free Space now as suggested.

    I am running a Mac Book Pro with OSX 10.8

    LVL 13

    Expert Comment

    Hi afterwards you must do the following. I've read you've done repair permissions, but you also should repair the disk.

    Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button. Repair When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list.  In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive.  If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported then click on the Repair Permissions button. When the process is completed, then quit DU and return to the main menu. Select Restart from the Apple menu.
    LVL 53

    Accepted Solution

    Try this:

    Use Safari's 'Empty Cache...' menu, then quit it, restart the computer and try again.

    Author Closing Comment

    Thank you all. In this instance the idea of emptying safari's cache worked for me.

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