Issues installing osx

Calum2

macrumors member
Original poster
Jan 4, 2017
45
20
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
 

Dronecatcher

macrumors 68040
Jun 17, 2014
3,671
3,511
Lincolnshire, UK
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
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.
 
Last edited:

bunnspecial

macrumors 604
May 3, 2014
6,993
3,879
Kentucky
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.
 

LightBulbFun

macrumors 68020
Nov 17, 2013
2,225
2,081
London UK
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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