Unmount and remount

src/freedombone-prep

 sync
 
 sleep 5
-if [ ! -d $MICROSD_MOUNT_POINT/$ROOTFS ]; then
-    $SUDO mkdir -p $MICROSD_MOUNT_POINT/$ROOTFS
+if [ -d $MICROSD_MOUNT_POINT/$ROOTFS ]; then
+    umount $MICROSD_MOUNT_POINT/$ROOTFS
+    $SUDO rm $MICROSD_MOUNT_POINT/$ROOTFS
 fi
+$SUDO mkdir -p $MICROSD_MOUNT_POINT/$ROOTFS
 $SUDO mount ${MICROSD_DRIVE}1 $MICROSD_MOUNT_POINT/$ROOTFS
 sync