[Unit] Description=Mount USB HDD [Service] Type=oneshot RemainAfterExit=yes #PIDFile=/run/thttpd.pid #ExecStart=/usr/bin/thttpd -D -C /etc/thttpd.conf ExecStart=/usr/local/bin/mount_data.sh #ExecReload= ExecStop=/usr/local/bin/mount_data.sh unmount #Restart=always # No USB HDD attached RestartPreventExitStatus=1 #[Install] #WantedBy=multi-user.target