diff --git a/build/functions/common.sh b/build/functions/common.sh
index 321570f7..3d696cab 100755
--- a/build/functions/common.sh
+++ b/build/functions/common.sh
@@ -244,6 +244,37 @@ download_file_if_missing() {
     return 1
 }
 
+# 下载 rc.local 文件
+download_rc_local() {
+    local platform_id="$1"
+    local rc_local_path="$SRCPATH/image/$platform_id/rc.local"
+    local relative_path="image/$platform_id/rc.local"
+    local remote_url="$REMOTE_PREFIX/$relative_path"
+
+    echo "信息：检查是否需要下载 rc.local 文件 ($platform_id)..."
+
+    # 如果本地文件不存在，尝试下载
+    if [ ! -f "$rc_local_path" ]; then
+        echo "信息：本地 rc.local 文件不存在，尝试从远程下载..."
+        ensure_dir "$(dirname "$rc_local_path")"
+
+        if curl -sSL --fail "$remote_url" -o "$rc_local_path"; then
+            echo "信息：成功下载 rc.local 文件：$remote_url"
+            # 在 GitHub Actions 环境中记录下载的文件
+            if is_github_actions; then
+                echo "$rc_local_path" >> "$DOWNLOADED_FILES_LIST"
+            fi
+            return 0
+        else
+            echo "信息：远程 rc.local 文件不存在或下载失败：$remote_url"
+            return 1
+        fi
+    else
+        echo "信息：使用本地 rc.local 文件：$rc_local_path"
+        return 0
+    fi
+}
+
 # 清理下载的文件（仅在 GitHub Actions 环境中）
 cleanup_downloaded_files() {
     if is_github_actions && [[ -f "$DOWNLOADED_FILES_LIST" ]]; then
diff --git a/build/functions/devices.sh b/build/functions/devices.sh
index 041d1833..b40ca697 100755
--- a/build/functions/devices.sh
+++ b/build/functions/devices.sh
@@ -66,9 +66,10 @@ onecloud_rootfs() {
 }
 
 cumebox2_rootfs() {
-    local source_image="$SRCPATH/image/cumebox2/Armbian_25.2.2_Khadas-vim1_bookworm_current_6.12.17_minimal.img"
+    local source_image="$SRCPATH/image/cumebox2/Armbian_24.8.1_Khadas-vim1_bookworm_current_6.6.47_minimal.img"
     local target_image="$TMPDIR/rootfs.img"
     local offset=$((8192 * 512))
+	local add_size_mb=900
 
     echo "信息：准备 Cumebox2 Rootfs..."
     ensure_dir "$TMPDIR"
@@ -77,7 +78,10 @@ cumebox2_rootfs() {
     download_file_if_missing "$source_image" || { echo "错误：下载 Cumebox2 原始镜像失败" >&2; exit 1; }
     
     cp "$source_image" "$target_image" || { echo "错误：复制 Cumebox2 原始镜像失败" >&2; exit 1; }
-
+	
+	echo "信息：扩展镜像文件 (${add_size_mb}MB)..."
+ 	sudo dd if=/dev/zero bs=1M count="$add_size_mb" >> "$target_image" || { echo "错误：扩展镜像文件失败" >&2; exit 1; }
+  
     echo "信息：调整镜像分区大小..."
     sudo parted -s "$target_image" resizepart 1 100% || { echo "错误：使用 parted 调整分区大小失败" >&2; exit 1; }
 
@@ -188,7 +192,7 @@ e900v22c_rootfs() {
 }
 
 octopus_flanet_rootfs() {
-    local source_image="$SRCPATH/image/octopus-flanet/Armbian_24.11.0_amlogic_s912_bookworm_6.1.114_server_2024.11.01.img"
+    local source_image="$SRCPATH/image/octopus-flanet/Armbian_25.05.0_amlogic_s912_bookworm_6.1.129_server_2025.03.02.img"
     local target_image="$TMPDIR/rootfs.img"
     local boot_offset=$((8192 * 512))
     local rootfs_offset=$((1056768 * 512))
@@ -293,4 +297,4 @@ config_octopus_flanet_files() {
     download_file_if_missing "$config_file" || echo "警告：下载 Octopus-Planet 配置文件失败"
     
     sudo cp "$config_file" "$ROOTFS/etc/model_database.conf" || echo "警告：复制 model_database.conf 失败"
-} 
\ No newline at end of file
+} 
diff --git a/build/functions/install.sh b/build/functions/install.sh
index f52329cc..bc6e6ebf 100755
--- a/build/functions/install.sh
+++ b/build/functions/install.sh
@@ -77,6 +77,8 @@ config_base_files() {
     sudo cp scripts/kvmd-gencert scripts/kvmd-bootconfig scripts/kvmd-certbot scripts/kvmd-udev-hdmiusb-check scripts/kvmd-udev-restart-pass build/scripts/kvmd-firstrun.sh "$ROOTFS/usr/bin/"
     sudo chmod +x "$ROOTFS/usr/bin/kvmd-gencert" "$ROOTFS/usr/bin/kvmd-bootconfig" "$ROOTFS/usr/bin/kvmd-certbot" "$ROOTFS/usr/bin/kvmd-udev-hdmiusb-check" "$ROOTFS/usr/bin/kvmd-udev-restart-pass" "$ROOTFS/usr/bin/kvmd-firstrun.sh"
     
+    # 尝试下载或使用本地 rc.local 文件
+    download_rc_local "$platform_id"
     if [ -f "$SRCPATH/image/$platform_id/rc.local" ]; then
         echo "信息：复制设备特定的 rc.local 文件..."
         sudo cp "$SRCPATH/image/$platform_id/rc.local" "$ROOTFS/etc/"
diff --git a/configs/os/udev/v2-hdmiusb-rpi4.rules b/configs/os/udev/v2-hdmiusb-rpi4.rules
index 2bab50be..1aaaa4b5 100644
--- a/configs/os/udev/v2-hdmiusb-rpi4.rules
+++ b/configs/os/udev/v2-hdmiusb-rpi4.rules
@@ -4,3 +4,4 @@ KERNEL=="video[0-9]*", SUBSYSTEM=="video4linux", PROGRAM="/usr/bin/kvmd-udev-hdm
 KERNEL=="hidg0", GROUP="kvmd", SYMLINK+="kvmd-hid-keyboard"
 KERNEL=="hidg1", GROUP="kvmd", SYMLINK+="kvmd-hid-mouse"
 KERNEL=="hidg2", GROUP="kvmd", SYMLINK+="kvmd-hid-mouse-alt"
+KERNEL=="ttyUSB0", GROUP="kvmd", SYMLINK+="kvmd-hid"