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Level 1

5 points

Repair Disk Error during Mountain Lion Install 2010 Macbook Pro

Hello All,

Last night like many of you I downloaded Mountain Lion to update to the newest Apple OS. During the install procress I was told my Harddrive was corrupted and needed to be repaired. After running the Verify Disk utility the following errors came up

Checking Catalog file,

Incorrect number of thread records

Checking catalog hierarcchy.

Invalid volume file count

Checking volume information.

The volume Macintosh HD was found corrupt and needs to be repaired.

Then I used the repair utlity on the same screen.

The message was that it had attempted to repair it three times and it could not do so.

During the repair the error message incorrect number of thread records appeared twice.

Afterwards it no longer showed that harddrive as mounted and I cannot boot back into it. When booting it gives me the option of the Install Boot, the Recovery Boot, or my Windows Partition boot.

Two Questions

Is there a way to boot back into the OS to recover my files, I have most backed up but would like to get a few more on my external HD?

My other question is how can I sucessfully repair the disk so that I can do the above question and also install mountain lion.

Thank you,

Andrew

Mac Pro, Mac OS X (10.7.2)

Posted on Jul 26, 2012 3:58 AM

Best reply

Appl4Life

Level 1

0 points

Posted on Jul 26, 2012 9:18 AM

My wifes 2009 Macbook has the same problem! This is horrible... We are taking it to Apple today to see what they say. They better repair this for free or at least recover the files she needs since last backup.

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31 replies

LKPLKP

Level 1

0 points

Sep 2, 2014 4:50 PM in response to andrew5oo0

So it's now August 2014 and I think I may have just become victim to this same problem. I have a 1 and half year old MacBook Pro (my third Mac notebook over the last 10 years).Last weekend I chose to update Mountain Lion having ignored the App Store updates for so long and with some time on my hands. I updated it and then after an hour or so of use I shut my notebook down for the night. Next day I tried to turn it on: nada - spinning dial on the apple grey screen. Get to disk utility and it tells me my disk needs to be repaired. Absolutely gobsmacked that such a new machine can have this problem - my last two notebooks died after 4-5 years with minor hard drive issues. Took the machine to Apple today: the technician "kindly" explained that as machinery hard drives could break anytime between 1 week and 5 years - I pointed out this didn't work so well for me when I paid £1k for the piece of kit in the first place!! They have taken labour off my fix cost as I made a fuss but it still cost me £80. I was completely baffled as to why the hard drive broke, given I have minimal use of it at home barely moving it around. BUT the one thing I did do before it failed? Updated Mountain Lion. And now that seems to explain a lot more. TOTALLY unacceptable - worst machine I've ever bought from Mac. Never buying one again at this rate, huge waste of money. When I pick up my "fixed" notebook on Tuesday I'll be mentioning this Mountain Lion corruption coincidence a bit more!!

Repair Disk Error during Mountain Lion Install 2010 Macbook Pro