I have mine set to do fsck;fsck;reboot because the only reason I boot single-user is to do fsck, and it also keeps the system secure.
If you're confused about what I mean, then you probably shouldn't use this hint.
[Editor's note: Although I haven't tested this hint, I looked through rc.boot, and it appears the section of the file you need to change actually reads ConsoleMessage "Root device is mounted read-only", and then there are a couple more lines of ConsoleMessage output, then an "else." You should insert the "reboot" before the "else," I believe (someone please correct me if I'm wrong).]

