I have a 13yo 400 Mhz Powermac G4 Gigabit Ethernet (exact specs linked here) that my father and I want to refurbish for a customer. It currently runs OSX.3.9 Panther which would be a pain in the wallet to upgrade to Tiger or Leopard and might not even work given the age of the machine. We want to see if we can get Linux to either dual-boot or replace the original OS and if that fails we might sell it for parts.
The main issue is trying to get it to recognize either the .iso files burned on a CD-R or the LIve USB stick I created for Lubuntu 12.10. I managed to work out how to boot another device via Open Firmware (press Command + Option + O + F as it boots for the prompt) but when it read my Live USB it said "load-size too small". I think this means that I need to find a Mac based program to clone my stick so it'll recognize the file system or I need to create a HD partition and install my distro that way? Which I'm not sure how I'm going to do that. I can't seem to find specfic advice for my problem. A lot of people seem to be able to easily convert Powerbooks into Linux machines but not 30lbs towers. Some help?