[PD] Starting a PD Patch on ubuntu-server on Boot/Startup Tutorial

[mark edward grimm]

Thanks for the suggestions on this list. Took me a
couple days of messing around. The following worked
the best for me. Hope this helps someone in need!

mark



I put the following script named "pd_start" in
/etc/init.d/

#################################  beginning of script
#############################

#! /bin/sh

# Check for missing binaries (stale symlinks should
not happen)
PD_BIN=/usr/bin/pd
test -x $PD_BIN || exit 5

case "$1" in
      start)
        echo -n "Starting PD"
        ## Start daemon with startproc(8). If this
fails
        ## the return value is set appropriately by
startproc.
        /usr/bin/pd -nogui -noaudio \
        -lib /usr/lib/pd/extra/zexy \
        -lib /usr/lib/pd/extra/maxlib \
        -path /usr/lib/pd/extra \
        -path /home/mark \
        /home/mark/netpd_server.pd &
        ;;
        ## mind the &!!
      stop)
        echo -n "Shutting down NetPd Server"
        ## Stop daemon with killproc(8) and it this
fails
        ## killproc sets the return value according to
LSB

        kill 'cat /var/run/pd.pid'
        ;;

      restart)
        ## Stop the service and regardless of whether
it was
        ## running or not, start it again
        $0 stop
        $0 start
        ;;

        *)
        echo "Usage: $0 {start|stop|restart}"
        exit 1
        ;;
esac

################################## end of script 
#######################


Then I changed the permissions on the file:

$ sudo chmod 755 pd_start

Then I ran the following command:

$ sudo update-rc.d -f pd_start start 99 2 3 4 5 .

Where:
- start is the argument given to the script (start,
stop).
- 99 is the start order of the script (1 = first one,
99= last one)
- 2 3 4 5 are the runlevels to start

It is important NOT to forget the "." period at the
end!  More info in /etc/rcS.d/README.

After hitting enter I get this:

 Adding system startup for /etc/init.d/pd_start ...
   /etc/rc2.d/S99pd_start -> ../init.d/pd_start
   /etc/rc3.d/S99pd_start -> ../init.d/pd_start
   /etc/rc4.d/S99pd_start -> ../init.d/pd_start
   /etc/rc5.d/S99pd_start -> ../init.d/pd_start

Then I do this to stop my script at shutdown:

$ sudo update-rc.d -f pd_start reboot 90 0 6 .

It is important NOT to forget the "." period at the
end! After hitting enter I get this:

usage: update-rc.d [-n] [-f] <basename> remove
       update-rc.d [-n] <basename> defaults [NN | sNN
kNN]
       update-rc.d [-n] <basename> start|stop NN
runlvl [runlvl] [...] .
                -n: not really
                -f: force

Then I restart the server to see if it works!

$ sudo shutdown -r now

AND IT DOES!!!

To know which runlevel you are running, simply type
$ runlevel

more info about runlevels here :
http://oldfield.wattle.id.au/luv/boot.html#init

This 'HowTo' was compiled using a suggestion from
'samyboy' at:

http://ubuntu.wordpress.com/2005/09/07/adding-a-startup-script-to-be-run-at-bootup/

and a thread from the 'pure-data' list at:

http://lists.puredata.info/pipermail/pd-list/2006-11/043742.html


  ____________________   
  mark edward grimm | m.f.a | ed.m    
  megrimm.net | socialmediagroup.org & .com   
  meg156 at columbia.edu | 585.509.8703
  ______________________________