Open Firmware
boot hd:11,\\:tbxi
yaboot?
…and on
introduction / reading /ref
- “Fundamentals of Open Firmware, Part I: The User Interface” http://developer.apple.com/technotes/tn/tn1061.html
- “Fundamentals of Open Firmware, Part II: The Device Tree” http://developer.apple.com/technotes/tn/tn1062.html
usefull commands
- dev /packages ls list available packages
- “did u zap the p-ram”???
- reset-nvram (hit enter)
- set-defaults (hit enter)
- reset-all (hit enter)
- debugging using telnet
- the following command will start a telnet server on the machine running openfirmware “ enet:telnet,10.0.0.1” io (note the space after the “)
device tree
- with a linux kernel that has been configured to inlcude openfirmware info in the /proc directory, many useful things can be seen (Q: and/or set?) here /proc/device-tree/
macOS boot sequence
links
- quick reference http://www.firmworks.com/QuickRef.html
- debugging using telnet http://developer.apple.com/technotes/tn/tn2004.html
- spec; Open Firmware IEEE 1275