Archived - Mac OS X Server 1.x: How to Enter and Exit Single-User Mode
Follow these steps to enter single-user mode:
1. Turn on the computer.
2. Immediately after the startup chime, press the "s" key until the system reaches the single-user prompt (#).
Follow this step to exit single-user mode and start up into the standard graphical environment:
1. While at the single-user prompt, type exit
You can also type reboot to exit single-user mode. This causes the computer to restart.
Note: If the computer is in single-user mode, and then switched to the standard graphical environment, a black screen with the word "continuing" appears briefly. Additionally, a black screen with the word "done" appears briefly during shutdown.