[SunHELP] General Boot Question

[Bret Adams]

Hey Everybody:

This is more of a general UNIX question but I have a bet with a buddy and I 
just want to confirm this so I can settle this issue.

My position is that when UNIX boots up the inittab file designates the 
default level of run level usually three unless someone pushes it to 
another run level at the shutdown command or init command.  Lets say its 
run level three, after starting up the kernel it processes the S scripts in 
rc2.d and then rc3.d.  Usually the S scripts in the rc directories are 
nothing more than links to initialization scripts in /etc/init.d  This way 
you have one central place for administration.

My buddy thinks that the scripts in init.d are used from init.d in the 
bootup process. I am trying to explain that if that was the case then why 
have the rc directories.

I just wanted to confirm that init.d is just a repository for the 
initialization scripts that the rc directories reference through links for 
bootup or shutdown.  Or you can use the scripts in init.d for when you need 
to shutdown and restart services without rebooting.  The actual init.d 
directory is NOT where the system goes to find bootup scripts.

Thanks.

Bret