Boot to Darwin

[Alpaca]

How is it possible to make a computer boot in Darwin/Terminal/Console/Unix mode, instead of OS X? I'm running 10.3.

 

[ElDiabloConCaca]

Hold down Command-S at startup until you drop into single-user mode.

http://docs.info.apple.com/article.html?path=Mac/10.4/en/mh343.html