Automatic shutdown possible? about buildroot-webkit HOT 2 CLOSED

You can create a crontab job that runs every day at a specifig time.

Unfortunately we did not implement it in the current setup by default, so you need to do a little bit of work.

1. Create an init.d script to run the cron service on startup:

nano /etc/init.d/S90crond

#!/bin/sh

CRON_JOB="30 22 * * * /root/poweroff.sh"

case "$1" in
        start)
                printf "Starting cron ... "
                mkdir -p /var/spool/cron/crontabs
                echo "$CRON_JOB" > /var/spool/cron/crontabs/root
                start-stop-daemon -S -q -m -b -p /var/run/dcron.pid --exec /usr/sbin/crond -- -f
                echo "done."
                ;;
        stop)
                printf "Stopping cron ..."
                start-stop-daemon -K -q -p /var/run/dcron.pid
                echo "done."
                ;;
        restart)
                $0 stop
                sleep 1
                $0 start
                ;;
        *)
                echo "usage: $0 {start|stop|restart}"
                ;;
esac

To make it simple, the cron job definition is also stored in the init script. For crontab scheduler definitions you can look at www.crontabgenerator.com for easily create the desired pattern.

2. Make the init.d script executable:
   chmod +x /etc/init.d/S90crond

3. Create the shutdown script:

nano /root/poweroff.sh

#!/bin/sh
poweroff &
exit 1

BTW: Putting the script into the root folder may not the best choice, but we leave it for now.

4. Make the shutdown script executable:
   chmod +x /root/poweroff.sh

5. Reboot your system.

Ensure to have the system time set correctly (e.g. internet sync) - else you have to setup the cron job with a delta t.

from buildroot-webkit.

Thanks for providing such fine details. From the information I gleaned from the web, it seems that I shouldn't really need to shutdown the RPi so I didn't use your script. I'm sure it would have done a great job.

Thanks again.

from buildroot-webkit.