Script under rc3.d Vs rc.local Post: 302334087

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Operating Systems Linux Script under rc3.d Vs rc.local Post 302334087 by mglenney on Tuesday 14th of July 2009 06:18:19 PM

07-14-2009

Registered User

Quote:

Originally Posted by mark54g

Please read the link I submitted. You are wrong, Six. rc.local is executed before anything else

Actually Mark, sixstrings is right. rc.local is generally the last startup script to run at any run level. Your example from the Fedora site spells it out:

"To run a command right after you boot, before anybody logs in, add the command to the file /etc/rc.local:"

The OP asked which runs first, script under rc3.d or scirpt "under" rc.local. I put under in quotes because in the Redhat server I'm looking at right now rc.local is a script, not a directory. On top of that the question is weird because rc.local is one of the scripts that is executed if you go to run level 3.

The scripts executed when a run level is applied have symbolic links in /etc/rc.d/rc<number>.d/ and have a name like S<number><name>. The scripts are executed by /etc/rc.d/rc which, if you look at it, just runs them through a for loop. The are executed in alphabetical order so S01blah gets executed before S02blah which gets executed before S02blat. The symbolic link for rc.local is usually S99local which puts it "near" the end. I say "near" because, while it's inteded to be at the end, it's possible to have scripts execute after it. You can do that by creating a symbolic link named S99<something_aphabetically_after_local>.

MG

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LEARN ABOUT OSF1

rcinet

rcinet(8)						      System Manager's Manual							 rcinet(8)

NAME

       rcinet - Restarts, starts, or stops Internet network services on the system

SYNOPSIS

       /usr/sbin/rcinet option

OPTIONS

       You  must specify one of the following options with the rcinet command: Restarts the network on the system.  Starts the network on the sys-
       tem.  Stops the network on the system.

       You can restrict the restart, start, or stop operation to either IPv4 or IPv6 networks by specifying inet or inet6,  respectively,  as  the
       second parameter.  By default, the script assumes both IPv4 and IPv6.

DESCRIPTION

       The  rcinet  script allows system administrators to restart, start, or stop the Internet network services on the system while it is running
       in multiuser mode by using one of the options.

RESTRICTIONS

       Superuser privilege is required.

       Warn users that the system is being removed from the network.

       File systems that were not mounted using the /etc/fstab file or the automount command must be unmounted with the umount command.  You  must
       remount these file systems using the mount command after the network is started on your system.

ERRORS

       The rcinet script prints an error message to stderr if the network is not configured on the system.

FILES

       The network shell scripts are located in /sbin/init.d with symbolic links in /sbin/rc0.d and /sbin/rc3.d.

SEE ALSO

       Commands: mount(8)

       Network Administration

																	 rcinet(8)