MacBook not booting OSX, IO error

Discussion in 'MacBook' started by patrickod, Jul 12, 2010.

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  1. patrickod, Jul 12, 2010

    patrickod macrumors newbie

    Joined:
    Jul 12, 2010
    #1
    Hey guys,

    I was moving my MacBook last night and I set it down on my desk and as I did so it died, almost as if the battery had come loose and it lost power. Since then though it has refused to boot OS X. I have booted into single user mode and successfully run fsck which shows no errors. The MacBook is dual-booting Ubuntu and OS X and Ubuntu boots and runs with no errors showing up.

    Any ideas on where I should proceed from here? I'm unsure whether the hard drive is actually to blame in this situation or whether it's something a little more serious. If it's only a little filesystem corruption, how should I try and get OS X running again?

    Any suggestions would be hugely appreciated

    Cheers

    Patrick
     
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  2. fluffyx, Jul 12, 2010

    fluffyx macrumors 6502

    Joined:
    Oct 25, 2007
    #2
    If you see messages similar to:

    disk0s3: I/O Error​

    , your hard drive is failing and must be replaced.

    It sounds like your filesystem is just fine, but there*may be unrecoverable bad blocks on the magnetic media itself. Regardless, the hard drive is experiencing a mechanical failure.

    If you have important files that aren't backed up, try to copy the most important files first! Do not continue to run fsck. Prolonged use of the hard drive before will only result in more errors, which may make at-home recovery impossible, and may make professional data recovery take more time and/or cost more.

    But if you can quickly back up important files yourself, no need for cleanroom data recovery. :)
     
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