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OS 9 on G4 Dual 1.25

1902 Views 9 Replies Latest reply: Nov 18, 2007 10:54 PM by Don Archibald RSS
Craig MacKenna Level 1 Level 1 (0 points)
Currently Being Moderated
Nov 17, 2007 2:45 PM
Want to run Leopard on my systems. Learned that it does not include a Classic environment. That's OK, the few times I want to run something under OS 9 I'm willing to reboot to OS 9.

Unfortunately I find that, under 10.4.11, Startup Disk is willing to restart to the OS9 on my Powermac G4 dual 1.25, but when it does so I get a blinking question mark inside a floppy disk logo. The hard drive in the machine is the 3rd one that's been in there, the 2nd HD worked the same before I evicted it this morning, the original HD died long ago. Also have a new drive with nothing on it yet.

Tried re-installing onto the new hard drive from a retail 9.2.1 CD (white with gold 9). It doesn't want to run on the dual 1.25.

Read some other threads in this forum, and tried running the Software Restore function from the 3rd of the grey CDs that came with my machine. It said it installed Software Restore successfully, then it tries to run and asks me to insert the CD with one circle and one dot, which is already in the drive. Ejecting and re-inserting this CD doesn't make the program do anything.

Of course I'm running this Software Restore under 10.4.11 while its docs say it wants to be under 10.2.

Any thoughts on how to proceed toward a bootable OS on my G4 dual 1.25? I suppose I could install 10.2 from my original grey disk onto my new drive, then see if Software Restore would install OS 9 under that...?
PowerMac G4 dual 1.25, Mac OS X (10.4.11)
  • Grant Bennet-Alder Level 8 Level 8 (48,110 points)
    Currently Being Moderated
    Nov 17, 2007 6:57 PM (in response to Craig MacKenna)
    This article has detailed instructions for doing what you want to do:

    301468- Mac OS X 10.4: Restoring applications from a Mac OS X 10.2 Software Restore disc

    The bulk of the article describes a method that involves erasing your Hard drive and re-installing 10.2, then upgrading to 10.4 after the restore.

    But if you look at the last few paragraphs, there is another method offered.

    You can download a .dmg that opens to an Installer .pkg that installs a new version of Restore:

    Software Restore restores your computer’s original contents except Mac OS X. This includes the applications of Mac OS X and Classic support for Mac OS 9 applications that came with your computer. Software Restore does not restore Mac OS X, iPhoto, iTunes, iCal, iChat or iMovie. If you need to reinstall Mac OS X or these applications, use the Mac OS X installation discs that came with your computer.



    Message was edited by: Grant Bennet-Alder
    Q840AV,5500,G3 AIO,G3 B+W,G4/867, Mac OS 8.6 or Earlier, and 9.2, 10.3 and Server - LW IIg, LW 4/600, ATalk ImageWriter LQ
  • Grant Bennet-Alder Level 8 Level 8 (48,110 points)
    Currently Being Moderated
    Nov 17, 2007 8:59 PM (in response to Craig MacKenna)
    10.2 and earlier have a history of being sloppy about stepping on OS 9's toes.

    How did you get OS 9 on the hard drive in the first place?

    You may be able to go back to that set-up and "Re-Bless" the OS 9 System Folder:

    106426- Mac OS: "Startup Disk no longer has a valid System Folder"

    or you could try using Statup Manager to see if you could one-time override whatever the default is set to:

    106178- Startup Manager: How to select a startup volume

    One other possibility is using a PRAM Reset to erase any pre-conceived notions about what is the default Operating System:

    2238- Resetting your Mac's PRAM and NVRAM

    Message was edited by: Grant Bennet-Alder
    Q840AV,5500,G3 AIO,G3 B+W,G4/867, Mac OS 8.6 or Earlier, and 9.2, 10.3 and Server - LW IIg, LW 4/600, ATalk ImageWriter LQ
  • Don Archibald Level 10 Level 10 (101,125 points)
    Currently Being Moderated
    Nov 18, 2007 12:19 PM (in response to Craig MacKenna)
    Hi, Craig -

    A couple of thoughts, items I did not see mentioned earlier in this thread.

    In order for a volume (volume = an unpartitioned drive, or a partition of a partitioned drive) to be OS 9 bootable -

    • the drive/volume must have OS 9 drivers installed. When OSX's Disk Utility is used to re-initialize a drive, the option to install OS 9 drivers must be selected; it is not always 'on' by default.

    • the volume can not exceed 200GB. If the drive is larger than that, it must be partitioned such that the volume used for OS 9 booting is no larger than 200GB (190GB is a safe max size).

    And, the OS 9 version must be suitable for the machine in question; since you are using the original disk set that came with the machine, this requirement is met.
    G4/500; G4/733; various OS's, Mac OS 9.1.x, DSL, enet
  • Don Archibald Level 10 Level 10 (101,125 points)
    Currently Being Moderated
    Nov 18, 2007 2:15 PM (in response to Craig MacKenna)
    Hi, Craig -

    You can use OSX's Disk Utility to partition such a drive. You can either boot from OSX on one drive and redo the other; or boot to the OSX Install CD and redo either or both.

    It's pretty much straight-forward; there's a brief description of doing that here -
    http://www.macworld.com/2006/06/secrets/julyworkingmac/index.php
    -and more here -
    http://docs.info.apple.com/article.html?path=Mac/10.4/en/mh14.html

    The critical items, other than volume size - make sure that OS 9 drivers are installed (that selection should be available on the Partition-tab page in Disk Utility); and that the volumes are formatted as Mac OS Extended.
    G4/500; G4/733; various OS's, Mac OS 9.1.x, DSL, enet
  • Don Archibald Level 10 Level 10 (101,125 points)
    Currently Being Moderated
    Nov 18, 2007 10:54 PM (in response to Craig MacKenna)
    Hi, Craig -

    You're quite welcome - glad you got it resolved and working.
    G4/500; G4/733; various OS's, Mac OS 9.1.x, DSL, enet

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