PREUN

/bin/sh

if [ $1 = 0 ]; then
    /sbin/service yum-updateonboot stop >/dev/null 2>&1 || :;
    /sbin/chkconfig --del yum-updateonboot >/dev/null 2>&1 || :;
fi

POSTIN

/bin/sh

/sbin/chkconfig --add yum-updateonboot >/dev/null 2>&1 || :;