Antminer cron daemon config

configure_antimer_crontab.md

Antminer crontab service configuration.

In Antminer S9 firmware there is crontab executable installed, but it is not configured as a daemon.

Here is how to configure it:

1. Create daemon config file /etc/init.d/cron with the contents of the cron file at the bottom of the gist.
2. Make it executable

chmod 755 /etc/init.d/cron

3. Start cron daemon at boot

ln -s /etc/init.d/cron /etc/rc5.d/S50cron

4. Start the daemon

/etc/init.d/cron start

5. Edit tasks with "crontab -e" or vi /etc/crontabs/root

cron

#!/bin/sh

PATH=/sbin:/bin:/usr/sbin:/usr/bin
DAEMON=/usr/sbin/crond
NAME=cron
DESC="Crontab"
OPTS="-c /etc/crontabs"

case "$1" in
  start)
	echo -n "Starting $DESC: "

	mkdir -p /etc/crontabs
	mkdir -p /var/spool/cron
	ln -s /etc/crontabs /var/spool/cron/ 2>/dev/null

	start-stop-daemon --start -x "$DAEMON" -- $OPTS
	echo "$NAME."
	;;
  stop)
	echo -n "Stopping $DESC: "
	start-stop-daemon --stop -x "$DAEMON"
	echo "$NAME."
	;;
  restart|force-reload)
	echo -n "Restarting $DESC: "
	start-stop-daemon --stop -x "$DAEMON"
	sleep 1
	start-stop-daemon --start -x "$DAEMON" -- $OPTS
	echo "$NAME."
	;;
  *)
	N=/etc/init.d/$NAME
	echo "Usage: $N {start|stop|restart|force-reload}" >&2
	exit 1
	;;
esac

exit 0