start a telnet server so that you can interact with the firmware and boot process from a remote machine via an ethernet connection.

Now that is interesting... I never knew OF had telnet server built in, so you can run putty on a PC or another Mac and put OF command in remotely, I will try that this week   What is the default Telnet IP ? and Admin password ?

Before booting the operating system, the Open Firmware generates a device tree by probing components on the main board and expansion devices.

We can change values, but we ne need to find out if we can delete parts of the tree (rather than remove hardware) from unsupported G4s for Modified ROM 10.2.1 Testing