User talk:A Fellow Editor/PowerPC Linux
Morning Musing
While doing some random musing this morning it occurred to me that your G5 PowerPC is likely much more capable than the old G3 machines I've played with. I'd been focused on MintPPC as it's purported to be the best option for old/weak PPC Macs. Some PPC version of Ubuntu or Fedora live cd/dvd (or live USB) ought to work on your (relatively) newer machine and be much less 'fiddley' for testing/trial purposes.
The 'live' option will allow you to test drive a (or a few) Linux PPC OS(s) without making any changes to your existing installed OS X. In some cases there's even an option to load the live disc image to RAM so as to achieve better responsiveness.
Running live from an optical disc will lag compared to an actual hard disk install. Let's one preview features and compatibility though. 'Live USB' via flash media (thumb drive, SD Card, etc.) is faster than optical. I've also booted from external hard drives via USB and firewire. Kinda' depends on what you have on hand.