I have an old G5 PPC machine with no OS X installed. I have the installation disk. Unfortunateley there seems to be an issue with the G5 reading or accepting the data from the disk. I've tried Everything I can but the disk is not read. I've swapped drives etc. to no avail.
I know the G5 will not boot from USB, trust me, I've tried, then I tried again.
My current option is using Target Disk Mode and a Firewire cable (these G5's can boot from Firewire).
I have an Intel MacBook, an A1181 series.
I can boot into Target Disk Mode, the disks from the G5 are recognised. I cannot use the drive of the MacBook to install onto the hard drive of the G5 because of an error that appears along the lines of "10.3 cannot be installed on this machine", I assume it's because of the Intel/PPC difference.
So I then restored the disk to a partition of the HDD from the G5 thinking I could 'boot' from that partition and then install.
That also failed, the disk was recognised but when selected a "no entry"-like symbol displayed in the middle of screen and nothing happened until the fans went into tornado mode.
I have a PPC G5, an A1181 MacBook, Firewire cable and the OS X install disk.
EDIT: The MacBook is running Leopard. I just tried this: https://discussions.apple.com/thread/4177625?start=0&tstart=0 And the same thing happened as before: I can see the disk but when selected the Apple logo turns into a "no entry" type sign