Connect the Hard Drive into a computer already running Mac OS 9 and re-partition/format it with the application ‘Drive Setup’.Ensure the option ‘Install Mac OS 9 Drivers is ticked! Boot from an OSX install CD, open ‘Disk Utility’ and partition/erase your HD with the ‘Mac OS Extended’ format.You can do this with either of the following methods: Preparationīefore you install Mac OS 9 on your machine, your Hard Drive must have the Mac OS9 disk drivers installed. Graphics acceleration is unavailable unless you have a graphics chip-set that is officially supported under Mac OS 9. The most success has been achieved with machines that have an ATI Graphics card/chip-set. The most common issues are with unsupported sound cards, video cards, Bluetooth, and Airport cards. Most of these machines have newer hardware that was never available for Mac OS 9, therefore there are missing drivers and system components - not all devices will work. Power Macintosh G4 Mirror Drive Doors (1.25Ghz FW800).

I recommend burning these CDs with an application such as Toast Titanium. There are a number of disc images available for multiple models at. Below is a compiled list of tutorials from my own experiences, and the others from MacOS9Lives. Through a lot of hard work the folks at have been able to get Mac OS 9 booting on most of these systems. Most of the Apple G4 models dropped support for natively booting Mac OS 9 and only support Mac OS X.

Stuffit expander mac os 9