I'm not sure where to post this.
I'm looking for pointers to how IBM's boot firmware on the RS/6000 or what is now called the p5 or pSeries machines. I know it is loosely based on Open Firmware but thats about all I know.
The particular question is if it is possible to teach the firmware how to boot from a different type of boot device such as a SATA disk. I have a driver written for AIX to implement SATA disks. It would be super if I could get the machine to boot from a SATA disk. I know that OF is in Forth but thats about all I know.