diff --git a/target/allwinner/v851s-fastboot_sl100_back/busybox-init-base-files/files/pseudo_init b/target/allwinner/v851s-fastboot_sl100_back/busybox-init-base-files/files/pseudo_init
index 012f1e958..152b2b4f6 100755
--- a/target/allwinner/v851s-fastboot_sl100_back/busybox-init-base-files/files/pseudo_init
+++ b/target/allwinner/v851s-fastboot_sl100_back/busybox-init-base-files/files/pseudo_init
@@ -572,11 +572,10 @@ check_update_system_state
 
 mount_usr
 [ x"$MOUNT_ETC" = x"1" ] && mount_etc
-[ x"$MOUNT_OVERLAY" = x"1" ] && mount_overlay rootfs_data	#choose rootfs_data or UDISK
+[ x"$MOUNT_OVERLAY" = x"1" ] && mount_overlay UDISK	#choose rootfs_data or UDISK
 mount_app
 
 MODULES_DIR="/lib/modules/`uname -r`"
-rc_mount
 insmod $MODULES_DIR/xr806.ko
 /etc/init.d/S50wifidaemon start &
 # insmod $MODULES_DIR/disp.ko # loaded by kernel