@@ -1659,7 +1659,10 @@ func (devices *DeviceSet) initDevmapper(doInit bool) error {

 	// https://github.com/docker/docker/issues/4036

 	if supported := devicemapper.UdevSetSyncSupport(true); !supported {

-		logrus.Warn("devmapper: Udev sync is not supported. This will lead to unexpected behavior, data loss and errors. For more information, see https://docs.docker.com/reference/commandline/daemon/#daemon-storage-driver-option")

+		logrus.Errorf("devmapper: Udev sync is not supported. This will lead to data loss and unexpected behavior. Install a dynamic binary to use devicemapper or select a different storage driver. For more information, see https://docs.docker.com/engine/reference/commandline/daemon/#daemon-storage-driver-option")

+		if !devices.overrideUdevSyncCheck {

+			return graphdriver.ErrNotSupported

+		}

 	}

 	//create the root dir of the devmapper driver ownership to match this