You need to read up on the SysV INIT system, which is sort of what is
used - though much simplified.
see for instance.....
http://www.redhat.com/docs/manuals/linux/RHL-9-Manual/ref-guide/s1-boot-init-shutdown-sysv.html
http://www.linuxnetmag.com/en/issue6/m6inits1.html
But it is very stripped down on the TS72xx's
Essentially on boot the init program reads /etc/inittab and start various
things (like getty on serial ports so you can login), and it runs script
/etc/rc.d/rcS.sysinit and as the default run level (see /etc/inittab) is 3
is runs /etc/rc.d/rcS 3, which runs the scripts linked in /etc/rc.d/rc3.d
(those that begin with "S") in numeric order. To see what is run do
ls -l /etc/rc.d/rc3.d/S*
So to get cron started the quick and dirty way modify the script
/etc/rc.d/rcS.sysinit to start crond.
To do it properly (:-) make a script to start/stop crond, put it at
/etc/init.d/crond, and add a suitable link from directory /etc/rc.d/rc3.d
that links to this script. See how its done by checking out
/etc/init.d/rc.inetd
e.g. cd /etc/rc.d/rc3.d
ln -s ../../init.d/crond S30crond
The sysV init stuff is infinitely configurable :-) see Gooches' rant on
the topic at
http://www.atnf.csiro.au/people/rgooch/linux/boot-scripts/
HTH
Jim
On Tue, 3 Oct 2006, weide72 wrote:
> Jim-
>
> One more quick question. How do I have this CRON process run
> immediatley at start up?
>
> Ryan
>
>
>
>
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