Ubuntu 8.10 Intrepid Ibex PowerPC Alternate Install CD Apple Mac G3 G4 G5 iMac
Supported PowerPC Systems iMac G3, G4, G5. Power Mac G3, G4, G5. iBook G3, G4. PowerBook G3 (New World), G4. Insert theUbuntu 8.10 Alternate Install CD into your Mac’s CD drive. Restart your Mac andhold down the "C" key to boot from the CD.