系统关机的运行级求解

eudaemon

debian:~# poweroff

Broadcast message from root (tty1) Sun Sep 12 14:22:19 2004...

大家看到了，系统关机是0级。那么它执行rc.d，是只执行rc0.d中的呢，还是从当前运行级（比如3）从rc3.d开始，依次降序到rc0.d？
The system is going down for system halt NOW !!
INIT: Switching to runlevel: 0
INIT: Sending processes the TERM signal
INIT: Sending processes the KILL signal
Stopping periodic command scheduler: cron.
Stopping internet superserver: inetd.
Saving the System Clock time to the Hardware Clock...
Hardware Clock updated to Sun Sep 12 14:22:47 CEST 2004.
Saving state of known serial devices... backing up serial.conf done.
Stopping deferred execution scheduler: atd.
Stopping system log daemon: klogd syslogd.
Stopping portmap daemon: portmap.
Sending all processes the TERM signal... done.
Sending all processes the KILL signal... done.
Saving random seed... done.
Unmounting remote filesystems... done.
Deconfiguring network interfaces: done.
Deactivating swap... done.
Unmounting local filesystems... done.
Power down.

KornLee

当向系统发出关机命令的时候,系统会执行相应的脚本,即/etc/rc0.d目录下的脚本.

eudaemon

3x!