modify partition

target/configs/d211_demo128_nand_defconfig

@@ -17,6 +17,14 @@ BR2_SYSTEM_DEFAULT_PATH="/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin"
 BR2_TARGET_ROOTFS_UBI=y
 BR2_TARGET_ROOTFS_UBIFS_MAX_SIZE=0x4000000
 BR2_TARGET_ROOTFS_UBIFS_OPTS="-F"
+BR2_TARGET_USERFS1=y
+BR2_TARGET_USERFS1_NAME="system"
+BR2_TARGET_USERFS1_TYPE_UBIFS=y
+BR2_TARGET_USERFS1_OVERLAY="target/$(LUBAN_CHIP_NAME)/$(LUBAN_BOARD_NAME)/system"
+BR2_TARGET_USERFS2=y
+BR2_TARGET_USERFS2_NAME="data"
+BR2_TARGET_USERFS2_TYPE_UBIFS=y
+BR2_TARGET_USERFS2_OVERLAY="target/$(LUBAN_CHIP_NAME)/$(LUBAN_BOARD_NAME)/data"
 BR2_GENERATE_BURNER_IMAGE=y
 BR2_GENERATE_IMAGE_AUTO_CALCULATE_SIZE=y
 BR2_PACKAGE_OPENSBI_FW_TEXT_BASE=0x47FE0000

target/d211/common/env.txt

@@ -63,7 +63,7 @@ set_nand_mtdargs=env delete mtdparts
 
 set_nand_bootargs=run set_nand_mtdargs; \
 	run set_commonargs; \
-	setenv bootargs ${bootargs} mtdparts=${MTD} ubi.mtd=${ubi_rootfs_mtd} root=${nand_root} rootfstype=${nand_rootfstype}
+	setenv bootargs ${bootargs} mtdparts=${MTD} ubi.mtd=${ubi_rootfs_mtd} ubi.mtd=11 root=${nand_root} rootfstype=${nand_rootfstype}
 
 set_nand_bootargs_recovery=run set_nand_mtdargs; \
 	run set_commonargs_recovery; \

target/d211/demo128_nand/image_cfg.json

@@ -13,7 +13,7 @@
 			"kernel":   { "size": "12m" },
 			"recovery": { "size": "16m" },
 			"ubiroot":  {
-				"size": "218m",
+				"size": "64m",
 				"ubi": { // Volume in UBI device
 					"rootfs": { "size": "-" },
 				},
@@ -21,7 +21,8 @@
 			"ubisystem": {
 				"size": "-",
 				"ubi": { // Volume in UBI device
-					"user":   { "size": "-" },
+					"system": { "size": "8m" },
+					"data":   { "size": "-" },
 				},
 			},
 		}
@@ -103,10 +104,15 @@
 				"attr": ["ubi", "required"],
 				"part": ["ubiroot:rootfs"]
 			},
-			"app": {
-				"file": "user*.ubifs",
+			"system": {
+				"file": "system*.ubifs",
 				"attr": ["ubi", "optional"],
-				"part": ["ubisystem:user"]
+				"part": ["ubisystem:system"]
+			},
+			"data": {
+				"file": "data*.ubifs",
+				"attr": ["ubi", "optional"],
+				"part": ["ubisystem:data"]
 			},
 		},
 	},

target/d211/demo128_nand/rootfs_overlay/etc/fstab

@@ -0,0 +1,11 @@
+# <file system>	<mount pt>	<type>	<options>	<dump>	<pass>
+/dev/root	/		ext2	rw,noauto	0	1
+proc		/proc		proc	defaults	0	0
+devpts		/dev/pts	devpts	defaults,gid=5,mode=620,ptmxmode=0666	0	0
+tmpfs		/dev/shm	tmpfs	mode=0777	0	0
+tmpfs		/tmp		tmpfs	mode=1777	0	0
+tmpfs		/run		tmpfs	mode=0755,nosuid,nodev	0	0
+sysfs		/sys		sysfs	defaults	0	0
+
+ubi1:system	/system		ubifs	ro,defaults	0	0
+ubi1:data	/data		ubifs	defaults	0	0

target/d211/demo128_nand/rootfs_overlay/etc/init.d/S01ubivol

@@ -0,0 +1,55 @@
+#!/bin/sh
+#
+# Auto-create and mount UBI volumes for system and data partitions
+#
+
+start() {
+	echo "Initializing UBI volumes..."
+	
+	# Check if ubi1 device exists
+	if [ ! -e /dev/ubi1 ]; then
+		echo "ubi1 device not found, skipping..."
+		return 0
+	fi
+	
+	# Create mount points
+	mkdir -p /system /data
+	
+	# Mount system (read-only)
+	if ! mountpoint -q /system; then
+		echo "Mounting /system..."
+		mount -t ubifs -o ro ubi1:system /system 2>/dev/null || echo "Failed to mount /system"
+	fi
+	
+	# Mount data (read-write)
+	if ! mountpoint -q /data; then
+		echo "Mounting /data..."
+		mount -t ubifs ubi1:data /data 2>/dev/null || echo "Failed to mount /data"
+	fi
+	
+	echo "UBI volumes initialized"
+}
+
+stop() {
+	echo "Unmounting UBI volumes..."
+	umount /data 2>/dev/null
+	umount /system 2>/dev/null
+}
+
+case "$1" in
+	start)
+		start
+		;;
+	stop)
+		stop
+		;;
+	restart|reload)
+		stop
+		start
+		;;
+	*)
+		echo "Usage: $0 {start|stop|restart}"
+		exit 1
+esac
+
+exit 0