What system software should I be using in order to run MacBSD?
If you are using Booter 1.8 or later, you must be running System 7 or later system software. System 6.x.x no longer works. The problem appears to be in the booter, but no one really seems to care. The latest version of the Installer (i.e 1.1d or later) also requires System 7 or later. In addition, many extensions distributed with later versions of MacOS may cause problems. It’ generally a good idea to boot with extensions off if at all possible.