Can't install EFI 1.5 or OSX 10.6.6

Discussion in 'Mac Pro' started by kpritcha13, Mar 18, 2011.

  1. kpritcha13 macrumors member

    Joined:
    May 6, 2007
    #1
    Hi, I have a 2010 Mac Pro and I'm having issues installing EFI Firmware 1.5 and OSX 10.6.6. The first time I tried to install the EFI, I got into it - it showed the grey screen with the Apple logo and the progress bar. Only after 6 hours the progress bar had never moved and I needed to use my computer so I restarted it. Does it normally take that long? Tried again a few weeks later and this time left it over night (10-12 hours) and again the progress bar had never moved and I restarted.

    So thats problem 1, problem 2: Does the 10.6.6 update require the EFI Firmware 1.5? When I try to install 10.6.6 it downloads it and then restarts, but then says there was an error and to try again. I've tried 3 times now with the same error.

    Anyone have any insight? Thanks!
     
  2. kpritcha13 thread starter macrumors member

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    May 6, 2007
  3. jeanlain macrumors 65816

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    Mar 14, 2009
    #3
    Call Apple?

    (not sure what you mean by "EFI Firmware 1.5)
     
  4. Cindori macrumors 68040

    Cindori

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  5. kpritcha13 thread starter macrumors member

    Joined:
    May 6, 2007
    #5
    Here they are:
    "About Mac Pro EFI Firmware Update 1.5

    This update is recommended for all Mac Pro (Mid 2010) models and addresses the following issues:

    Resolves an issue that prevented the firmware password prompt from being displayed.
    Resolves an issue that prevented the BootPicker from being presented if Ethernet is connected to a network without DHCP.
    To complete the firmware update, wait for your Mac Pro to finish installing and shutdown. Hold down the power button until the power indicator light flashes, or you hear a long tone, then release the power button. A gray screen with an Apple logo and progress bar will appear while the update is taking place. When the update is complete your Mac Pro will startup normally.

    Important: The update may take a few minutes. Do not unplug, shutdown, restart or disturb your computer while the update is taking place."



    I did and followed them... and its says "a few minutes" after 6 hours the progress bar never changed so I restarted.

    The firmware update isn't required to install 10.6.6 is it?

    Guess I'll call Apple, just thought I would check here first.
     
  6. beto2k7 macrumors 6502

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  7. jeanlain macrumors 65816

    Joined:
    Mar 14, 2009
    #7
    The firmware update can't possibly require 10.6.7.

    Call Apple. You're lucky you didn't break your Mac with a firmware update that went wrong, because that's what usually happens.
     

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