diff --git a/target/linux/rockchip/armv8/base-files/lib/preinit/79_move_config b/target/linux/rockchip/armv8/base-files/lib/preinit/79_move_config
index b900f33dd..96e636ee8 100644
--- a/target/linux/rockchip/armv8/base-files/lib/preinit/79_move_config
+++ b/target/linux/rockchip/armv8/base-files/lib/preinit/79_move_config
@@ -5,8 +5,8 @@ move_config() {
 
 	if export_bootdevice && export_partdevice partdev 1; then
 		if mount -o rw,noatime "/dev/$partdev" /mnt; then
-			if [ -f "/mnt/sysupgrade.tgz" ]; then
-				mv -f "/mnt/sysupgrade.tgz" /
+			if [ -f "/mnt/$BACKUP_FILE" ]; then
+				mv -f "/mnt/$BACKUP_FILE" /
 			fi
 			umount /mnt
 		fi
diff --git a/target/linux/rockchip/armv8/base-files/lib/upgrade/platform.sh b/target/linux/rockchip/armv8/base-files/lib/upgrade/platform.sh
index 317789217..faed0667f 100644
--- a/target/linux/rockchip/armv8/base-files/lib/upgrade/platform.sh
+++ b/target/linux/rockchip/armv8/base-files/lib/upgrade/platform.sh
@@ -30,7 +30,7 @@ platform_copy_config() {
 
 	if export_partdevice partdev 1; then
 		mount -o rw,noatime "/dev/$partdev" /mnt
-		cp -af "$CONF_TAR" "/mnt/sysupgrade.tgz"
+		cp -af "$UPGRADE_BACKUP" "/mnt/$BACKUP_FILE"
 		umount /mnt
 	fi
 }
@@ -45,7 +45,7 @@ platform_do_upgrade() {
 
 	sync
 
-	if [ "$SAVE_PARTITIONS" = "1" ]; then
+	if [ "$UPGRADE_OPT_SAVE_PARTITIONS" = "1" ]; then
 		get_partitions "/dev/$diskdev" bootdisk
 
 		#extract the boot sector from the image