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  1. #1

    Member Since
    Jun 28, 2010
    Unhappy G4 Firmware update - Arggh!
    I have a g4 mac with osx 10 on it. I have to update my firmware but have no osx 9 installation on the osx partition.(it requires this to boot into).

    my question is 2 fold.

    If i install the osx 9 installation from the system disks, on the same partition as the osx installation, will it break the osx installation or will it run in paralell giving me boot options?


    if it will break the partition, is there a better way to achieve/install the os9 installation, or update my firmware without the os9 installation?



  2. #2

    louishen's Avatar
    Member Since
    Oct 22, 2007
    Mac Mini Core i7 2012 | White 2009 MacBook 2 Ghz | 733 Mhz G4 Quicksilver
    No, OS9 and OSX can live with each other quite happily on the same partition

    to boot into the right OS, choose the start-up disk preferences or just hold down the alt (or option) key on start-up
    Member of the Month September 2008 & August 2012 | Found advice useful? use the rep system

  3. #3

    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Nambucca Heads Australia
    iMac, i7 4GHz, 32GB memory, 1TB Blade Drive, OS X.13.5
    What makes you think you need to update the firmware? You are already running OS X in some form so the firmware is okay. You will only be able to install OS 9 if it is earlier than a FW800 MDD, always helps to provide the model and operating system, and when the drive was formatted, did you select to install OS 9 drivers at that time?

    If not and OS 9 will install, nack up and wipe the drive and start again.

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