Mac Mini G4 - USB boot leopard

Discussion in 'PowerPC Macs' started by Project Alice, Oct 26, 2018.

  1. Project Alice macrumors 6502a

    Project Alice

    Joined:
    Jul 13, 2008
    Location:
    Post Falls, ID
    #1
    Hi all,
    I'm trying to install Leopard Server on my Mac Mini G4, Via USB. I don't have any DL-DVDs right now, and if I did, according to system profiler this Mini only has a CD-RW drive (which is weird because according to everymac, these minis only came with a DVD drive).
    After booting the drive with open firmware I get the wonderful "no" symbol.

    IMAG0357.jpg

    I created the drive first using carbon copy cloner, and then with Disk Utilities restore function (on High Sierra, which is why I used CCC first). Both give me this same outcome.
     
  2. AL1630 macrumors 6502

    AL1630

    Joined:
    Apr 24, 2016
    Location:
    Idaho, USA
    #2
    If you can, I would try Target Disk Mode. It's worked pretty well for me when a PPC won't boot off a usb stick.
     
  3. Project Alice thread starter macrumors 6502a

    Project Alice

    Joined:
    Jul 13, 2008
    Location:
    Post Falls, ID
    #3
    That won't help because I need to boot from the installation media in some manner. I still don't have any DL DVDs to put the leopard installer on. Worst case scenario I'll put it on a random 2.5" HDD I have laying around and throw it in my FW enclosure.
     
  4. AL1630 macrumors 6502

    AL1630

    Joined:
    Apr 24, 2016
    Location:
    Idaho, USA
    #4
    The Firewire method I used involves partitioning the hard drive, copying the installer onto one partition, then booting off of it and installing on the other partition. Using an enclosure is probably easier than that though.
     
  5. Project Alice thread starter macrumors 6502a

    Project Alice

    Joined:
    Jul 13, 2008
    Location:
    Post Falls, ID
    #5
    Oh, yeah I suppose that would work. I'll probably just end up using a hard drive. USB just seemed like a good idea since I have a drawer full of flash drives and G4's are supposedly bootable from USB.
     
  6. Project Alice thread starter macrumors 6502a

    Project Alice

    Joined:
    Jul 13, 2008
    Location:
    Post Falls, ID
    #6
    I ended up just using another FW drive.

    Still though, is there any reason why USB wasn't working?
     
  7. nglevin macrumors member

    nglevin

    Joined:
    Jul 8, 2018
    #7
    Open Firmware booting off of USB has never been officially supported on PPC. Target Disk Mode via SCSI and FW were supported, depending on the Mac.

    You didn't say exactly how you tried booting off USB with OF, but IIRC it requires some arcane OF commands. Even then there's no guarantee that it will work from one version of OF that shipped on a PPC Mac to the other.
     
  8. mikehalloran macrumors 65816

    Joined:
    Oct 14, 2018
    Location:
    The Sillie Con Valley
    #8
    --- Post Merged, Oct 28, 2018 ---
    It's not supported.

    PPCs boot from Firewire. Intel Macs boot from USB.

    You don't say which G4 you have but it needs to be an 867 to run 10.5 at all. I have a 1.2 twin core and found Leopard too slow to be of any use so I went back to 10.4.11.
     
  9. Bug-Creator macrumors 6502a

    Bug-Creator

    Joined:
    May 30, 2011
    Location:
    Germany
    #9
    Minis can be booted from USB for sure, wether that applies for any version of OSX is another question.....
     
  10. Project Alice, Oct 28, 2018
    Last edited: Oct 29, 2018

    Project Alice thread starter macrumors 6502a

    Project Alice

    Joined:
    Jul 13, 2008
    Location:
    Post Falls, ID
    #10
    PPC Macs, most G4s and all G5s CAN be booted from USB via open firmware. It isn't supported, but it usually works. I've done it a few times, usually with linux.

    And yes, my original post DOES say which G4 (should I also mention the title of this thread?), its a Mac mini. They were only made with a 1.25ghz up to 1.5ghz. Mines a 1.5. Also, 10.5 runs on ANY G4. With a little coxing to the installer. Or just clone a working install to an unsupported G4. It runs on my dual 450Mhz sawtooth, and single 500mhz just fine. Tiger really isn't that much faster on any PPC Mac in my opinion.
     

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9 October 26, 2018