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Shutting down the system
Nico Schotteilus, 2005-05-24 (last change: 2005-06-02)
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cinit will shutdown all running service exactly the reverted
way it started them.

1. What to do to allow a system to shutdown?

Create /etc/cinit/reboot, /etc/cinit/power-off and /etc/cinit/halt.

It's in most scenarios also enough to create only one of those
service directories and link all others against the first one:

[21:38] ei:cinit# mkdir /etc/cinit/power-off  
[21:38] ei:cinit# ln -s power-off /etc/cinit/reboot
[21:38] ei:cinit# ln -s power-off /etc/cinit/halt  

Then create the needed services, which are almost always:

   - swapoff: disable swap
   - sync: sync buffers to disk
   - umount: umount everything
   - remount: remount root read-only
   

on oder off?????

Add dependencies to 

You can also use
What todo when shutting down (reboot, halt, poweroff) the system:

1. Cycle through service list and 
while(processes--) {
   Stop_current_processs
}

   - Stop_current_processs
   \ if(status = respawn)
   |   -> kill -TERM pid
   | exec_svc(svc/off, svc/off.params)

kill remaining processes with SIGTERM
sleep(WAIT_KILL)
kill remaining processes with SIGKILL
sync;
umount(*)

reboot


- cycle through running services, kill them the other way round
- stop respawing processes

- start off-process of running services
- don't shutdown failed services

kill_svc(struct stat svc);