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Ubuntu linux inittab question

Posted on 2007-11-23
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Last Modified: 2013-11-15
I have a process that I want to automatically start up when I reboot my machine.  Currently running Ubuntu linux 2.6.20-15

$WEB_SERVER_HOME/bin/httpd.sh &

How and where do I configure ubuntu to run this automatically at bootdup.

I went looking for /etc/inittab  instead I found /etc/init.d with about 90 files and directories.  I'm not sure which to modify and how to configure this so my webserver starts automatically.

Beginner advice please
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Question by:tmonteit
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omarfarid earned 500 total points
ID: 20341682
Hi,

init process will look into the run level dir and run all startup scripts of that level.

e.g. if the run level is 5 then it looks for scripts in /etc/rc5.d dir.

The scripts are by convention have their names in this format:

CnumName

C is either K (kill / stop) or S (start)
num is a number like 10, 15, 99 etc.
Name is a name reflecting the S/W

So, in your case you may create a startup script (call it S99Webserver) in /etc/rc5.d that contains all necessary settings and commands to start your web server.

e.g.

WEB_SERVER_HOME=/path/to/my/web
cd $WEB_SERVER_HOME
nohup $WEB_SERVER_HOME/bin/httpd.sh & 

Make sure that the script is executable

chmod +x /etc/rc5.d/S99Webserver

Here I amassuming your default run level is 5. To find the default run level, please see /etc/inittab file

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Author Comment

by:tmonteit
ID: 20341736
Follow-up question.  I'm trying to figure out what my default run level is.

   "To find the default run level, please see /etc/inittab file"  

>cat /etc/inittab
cat: /etc/inittab: No such file or directory

advice?
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LVL 40

Expert Comment

by:omarfarid
ID: 20341749
Hi,

When your m/c boots, it goes to default run level.

When you login, to find current run level, you may run

who -r

It seams your version of ubuntu is 6.10 or higher, which do not use init. Please see

http://upstart.ubuntu.com/
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