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Volume Bitmap Errors - What Keeps Causing Them?

362 Views 3 Replies Latest reply: Nov 20, 2012 3:36 PM by drdocument RSS
Cerebro Level 1 Level 1 (90 points)
Currently Being Moderated
Nov 2, 2012 4:57 AM

I've been a recurring issue with my 2010 MacBook Pro (specs below) in recent months.  It seems like every other week, lately, I've needed to repair my internal HD because I keep seeing the following error:

 

"Volume bitmap needs minor repair for orphaned blocks"

"Invalid volume free block count"

 

The problem always repairs, successfully.

 

My computer isn't having any issues (none perceptible to me, anyway).  Yet, my blocks seem to keep getting orphaned.  Why would this keep happening?  How can I prevent it?

 

Thanks.

MacBook Pro (15-inch Mid 2010), OS X Mountain Lion (10.8.2)
  • DRADIS Calculating status...
    Currently Being Moderated
    Nov 18, 2012 3:47 PM (in response to Cerebro)

    I have been having the same issue with 2 differnet 2010 MacBook Pro's at work.  I can repair it with dis kutiltiy in recovery mode, but it always seems to come back after a week or so. I am currently running 10.8.2, I also have a Mini and 2 iMacs runing the same version of the OS that do not have this issue.   I am wondering if I am going to have to reformat and install from scratch to fix this.  I am concerned that it might be a sign of impending drive failure.  I think my  issue started about 2 months ago.

  • drdocument Level 4 Level 4 (2,995 points)
    Currently Being Moderated
    Nov 20, 2012 3:36 PM (in response to Cerebro)

    Launch Disk Utility and click the icon of the physical drive itself (not the indented volume name). Check S.M.A.R.T. status. Any messages?

     

    When you launch Disk Utility to repair drive is it from Recovery HD or from some other startup drive?

     

    In any case, when you Repair Disk, if you haven't done so before, repeat Repair Disk until no errors are reported. Sometimes one error can mask another.

     

    If you have done the above, it may help to try a more powerful disk utility such as Disk Warrior, but you will need to boot from the utility's disk or from a different startup drive.

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