OpenBoot PROM

These are some docs I've written for using the OpenBoot PROM. There's not much here yet; I need to remember to add content next time I'm using it.

Note: This page was last updated in 2011 and is no longer maintained. It is now part of my Crypt.


The OpenBoot PROM (OBP) is firmware used on Sun SPARC and Apple computers to handle boot and devices (instead of a BIOS). It is very powerful, and contains a Forth interpreter.


Root Hack

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Created: 02-May-2005
Last updated: 03-Dec-2011
Copyright (c) 2005, 2011 Brendan Gregg