Mac Mini G4 - bootable disc problem

Discussion in 'PowerPC Macs' started by mmace, Sep 13, 2013.

  1. mmace macrumors newbie

    Aug 13, 2008
    Leeds, UK
    I've just bought a G4 Mac Mini but it doesn't seem to like bootable discs.
    I have tried OSX, Linux and MorphOS discs but they don't show as a bootable option in Open Firmware (holding down "option") or in "Startup Discs" in OSX, the discs can be read fine in OSX.
    In open firmware I've tried:
    this hasn't helped
    I've also put the iso on a usb stick along with boot.img from within the iso and tried the below which I found on the web:
    boot usb1/@1:,\boot.img umsd0:morphos32.iso
    but I get the error:
    LOAD-SIZE too small

    Any ideas anyone?
  2. rabidz7 macrumors 65816


    Jun 24, 2012
    Get a FW adapter and hook it onto the USB disk.
  3. Zotaccian macrumors 6502a


    Apr 25, 2012
    If the OS X disc is genuine / confirmed to be working then you could try creating bootable usb stick by using Disk Utility. I have never used disc as source, only a DMG image copied to hard disk. Once you have created the stick succesfully you can the google instructions how to boot from. I remember reading somewhere that some PPC macs shold support booting off usb without tricks but I guess Mac mini still requires Open Firmware commands.

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