[Unit]
Description=Device Mapper Event Daemon
DefaultDependencies=no
After=device-mapper.service lvm.service

[Service]
ExecStart=/sbin/dmeventd -f 
ExecStartPost=-/bin/ln -s /etc/init.d/dmeventd /lib/rc/init.d/started
ExecStopPost=-/bin/ln -s /etc/init.d/dmeventd /lib/rc/init.d/started

[Install]
Also=device-mapper.service
WantedBy=local-fs.target