[Emergency] MacBook can't find the bootloader

Discussion in 'MacBook Pro' started by Suno, Jul 10, 2015.

  1. Suno macrumors 6502

    Suno

    Joined:
    Dec 12, 2011
    #1
    Mid-2012 MBP.

    The only custom part I have is a 256gb SSD. The default partition that the computer boots to is bootcamp.

    Basically, I let the battery die by accident when I forgot to plug the charger in. I plug it back in, boot up and it's fine the first time. Computer crashes almost immediately after and now every time I turn it on, I get a white screen. If I load into Mac partition, it gives me Internet recovery and asks me how I'm going to reinstall the os. If I boot into boot camp, I get a black screen telling me the bootloader is non-existent and to put in a recovery disk.
     
  2. yjchua95 macrumors 604

    Joined:
    Apr 23, 2011
    Location:
    GVA, KUL, MEL (current), ZQN
    #2
    Boot into Internet Recovery and reinstall OS X. Relax - all your files, apps and preferences will remain intact.
     
  3. Suno thread starter macrumors 6502

    Suno

    Joined:
    Dec 12, 2011
    #3
    I can't reinstall OS X. I went into Internet Recovery and tried to do as you said, and it tells me that I already have the latest OS X installed and won't let me. Boot camp partition is locked.
     
  4. Fishrrman macrumors G3

    Joined:
    Feb 20, 2009
    #4
    This is why one -always- keeps an external BOOTABLE backup drive around...
     
  5. ssls6 macrumors 6502a

    ssls6

    Joined:
    Feb 7, 2013
    #5
    Boot recovery, bless the OS X partition (select it as startup drive), then reboot. You may eventually need a windows CD to repair the bootcamp volume.
     
  6. chrfr macrumors 603

    Joined:
    Jul 11, 2009
    #6
    What is the exact text of this error message?
     

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