PREUN
/bin/sh
if [ $1 -eq 0 ]; then rm -rf /var/lock/mrtg fi
POSTIN
/bin/sh
install -d -m 0755 -o root -g root /var/lock/mrtg /sbin/service crond condrestart 2>&1 > /dev/null || :
POSTUN
/bin/sh
/sbin/service crond condrestart 2>&1 > /dev/null || :