disk0s2: I/O error -- Gray Screen Stuck

Discussion in 'MacBook Pro' started by Stokes, Feb 21, 2012.

  1. Stokes macrumors regular

    Nov 19, 2007
    Or E Gun
    Hey Guys,
    My MBP won't get past the gray screen.
    I restarted holding down Shift-Command-V, and it's now showing this error.

    Anybody have a good idea on a fix?

  2. Prodo123 macrumors 68020


    Nov 18, 2010
    You tried to boot into safe mode w/ verbose startup?

    disk0s2 is your first partition after the EFI space. It most likely is your main Mac OS X partition.
    The I/O error means it cannot communicate with that partition.
    I'd say it's a hard drive failure. Try throwing that drive in the freezer for an hour and plugging it back in.

    If you wanna make sure, boot into your Mac OS X install media and verify your disk with Disk Utility. Also make sure your S.M.A.R.T. status has been verified; if it's not, then it's most likely damaged.

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