StarBuck: I'm not sure where you would go with it from there. On every system I have worked with from NEXTSTEP 3.0 to Rhapsody 5.1, that command would at least get you into your system in default mode to change hardware settings.
kommakazi: Cool links, I love my A/UX system (a Quadra 700), and have had some great fun with it. The reason that I didn't include it in the short OS family tree I did was that I was only looking at the NeXT OS/Apple OS through to the last version Apple released (Rhapsody 5.6). A/UX was a unique project that was ahead of it's time. When Apple started using PPC systems, the cost of porting A/UX was too high for the amount of people using it. So what Apple did was they dropped A/UX and started to use AIX for their high end servers (with the Macintosh Application Environment, aka MAE, to run Mac apps on an AIX system). After that, A/UX didn't play a part in the Mac OS (sadly, because that was a ton of good info and research lost).
We have had some A/UX threads which I have posted some images, but I'll post this one over again.