Karsten> S is single user. Same as '1'. This is not quite right.
S is the real single-user level. 1 OTOH is used just as a way-station from multiuser to kill all the multiuser services before entering S with clean slate. If you say "init S" in multiuser you will end up with a root password prompt because all the getties will be killed (being under direct control of init), but the services will stay up. If you look at /etc/init.d/rcS (the script that init executes when entering S) you'll see that _all_ the sub-scripts in /etc/rcS.d/ are run with "start" as a parameter - which means rcS _never_ kills anything. If you do "init 1" /etc/init.d/rc is run instead, which knows how to kill the services by calling sub-scripts with a "stop" parameter. The last sub-script then does "init S". I don't know why it is done this way; it looks like an ugly hack to me. I'd just have rcS work the same way as rc (indeed they should be the same script). Ask me when I am a developer :) -- Ian Zimmerman, Oakland, California, U.S.A. EngSoc adopts market economy: cheap is wasteful, efficient is expensive.
