Most recent firmware update prevents computer from booting

Discussion in 'MacBook Pro' started by ezsober, Feb 24, 2010.

  1. macrumors member

    Joined:
    Aug 14, 2003
    #1
    Hi. I recently attempted to install the most recent firmware and security updates for mac os x 10.5.8 on my macbook pro 17 inch (purchased about 14 months ago). Computer asked me to reboot, i did, it then gave me instructions for firmware updates. The screen went dark, and it did its thing, and I returned 10 minutes later. The computer had not rebooted.

    I pressed the startup key and it gave a long beep. Screen remained dark. Some minutes later it ran the boot cycle, but booted into windows (i have dual boot set up). I can only get into windows now.

    What is going on?

    Thanks for any suggestions.
     
  2. macrumors 68040

    iLog.Genius

    Joined:
    Feb 24, 2009
    Location:
    Toronto, Ontario
    #2
    Boot off your install DVD and from there you'll have a clearer picture on what's going on with the OS X partition.
     
  3. macrumors regular

    Joined:
    Feb 24, 2010
    Location:
    Sweden
    #3
    Hold down the ALT-key when you boot to select bootdevice. OS X and Windows should show up there any other bootable device that is connected
     

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