apk_add $@
	sed -i -e '/^NTPD_OPTS=.*/d' /etc/conf.d/ntpd
	echo 'NTPD_OPTS="-s"' >> /etc/conf.d/ntpd
	/etc/init.d/ntpd start
	sleep 2
	pidof ntpd
	/etc/init.d/ntpd stop
	# verify that it really dies
	sleep 2
	! pidof ntpd
	apk_del $@