Issues installing osx

Discussion in 'PowerPC Macs' started by Calum2, Jul 27, 2017.

  1. Calum2 macrumors member

    Calum2

    Joined:
    Jan 4, 2017
    #1
    Trying to install 10.5.4 via usb on my imac g5. I hold alt on start up to boot from dvd/ usb though nothing is there, just the two arrows. The imac is my only mac computer I own, I made the boot-able usb with Transmac with an ISO from Macintosh Garden.

    Any help appreciated
     
  2. Dronecatcher, Jul 27, 2017
    Last edited: Jul 27, 2017

    Dronecatcher macrumors 68020

    Dronecatcher

    Joined:
    Jun 17, 2014
    Location:
    Lincolnshire, UK
    #2
    There are users on here more versed at this than I am but here's a start which should work:

    https://askubuntu.com/questions/578...tosh-powerpc-no-cd-drive-usb-boot-not-working

    There might be problems using Transmac to make the USB - in every instance writing a DVD is better.
     
  3. bunnspecial macrumors 603

    bunnspecial

    Joined:
    May 3, 2014
    Location:
    Kentucky
    #3
    Boot into open firmware by holding Command+Option+O+F

    Then, type boot ud:,\\tbxi

    That USUALLY will work on a G5 to boot off a USB.
     
  4. LightBulbFun macrumors 68000

    LightBulbFun

    Joined:
    Nov 17, 2013
    Location:
    London UK
    #4
    just to expand on this a bit,

    the "boot ud:,\\:tbxi" only works on PPC macs from 2005 or so, it is fully possible to boot from USB on PPC macs older then 2005 but its a little more complicated
     

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