diff --git a/base_image_assembling/assemble_base_image.sh b/base_image_assembling/assemble_base_image.sh
index 299a86d..21ad310 100755
--- a/base_image_assembling/assemble_base_image.sh
+++ b/base_image_assembling/assemble_base_image.sh
@@ -26,7 +26,7 @@ COPY_MODE="singlecopy"
 STORAGE_EMMC_FLAG=false
 STORAGE_DEVICE="sd"
 PT_SIZE=''
-GENERATE_MBR_ONLY_FLAG=false
+GENERATE_PT_TBL_ONLY_FLAG=false
 
 while getopts "o:deb:mh" arg; do
 	case $arg in
@@ -45,7 +45,7 @@ while getopts "o:deb:mh" arg; do
 			SOC=$OPTARG
 			;;
 		m)
-			GENERATE_MBR_ONLY_FLAG=true
+			GENERATE_PT_TBL_ONLY_FLAG=true
 			;;
 		h)
 			print_help
@@ -89,7 +89,7 @@ if [ x$GENERATE_PT_TBL_ONLY_FLAG == xtrue ]; then
 	fi
 	echo "Generating ${IMAGE_PT_TBL_PATH}"
 	cd $PT_FILEDIR
-	generate_pt_tbl_dualslot $PT_FILENAME $IMAGE_PT_SIZE $IMAGE_PT_TBL_FMT
+	generate_pt_tbl_dualslot $PT_FILENAME $IMAGE_PT_TBL_SIZE $IMAGE_PT_TBL_FMT
 	cd -
 	echo "DONE"
 	exit 0
diff --git a/boards/cfg_imx6ull_base.cfg b/boards/cfg_imx6ull_base.cfg
index 8a7e9bc..fe7f52d 100644
--- a/boards/cfg_imx6ull_base.cfg
+++ b/boards/cfg_imx6ull_base.cfg
@@ -20,7 +20,7 @@ IMAGE_PT_TBL_LENGTH=512
 # Format: [PARTITION_NAME:<OFFSET_START>:<OFFSET_END>:<Filesystem Type>]
 # Numbers and fs type in this struct will be passed to command directly.
 # sudo parted <PARTITION_NAME> unit MiB mkpart primary <Filesystem Type> <OFFSET_START> <OFFSET_END>
-IMAGE_PT_TABLE_STRUCT="
+IMAGE_PT_TBL_STRUCT="
 1:SLOTA_BOOT_PT:100:220:fat32
 2:SLOTA_ROOTFS:220:3220:ext4
 3:SLOTB_BOOT_PT:3220:3340:fat32
diff --git a/boards/cfg_imx8mm_base.cfg b/boards/cfg_imx8mm_base.cfg
index d195ae1..80993bb 100644
--- a/boards/cfg_imx8mm_base.cfg
+++ b/boards/cfg_imx8mm_base.cfg
@@ -20,7 +20,7 @@ IMAGE_PT_TBL_LENGTH=512
 # Format: [PARTITION_NAME:<OFFSET_START>:<OFFSET_END>:<Filesystem Type>]
 # Numbers and fs type in this struct will be passed to command directly.
 # sudo parted <PARTITION_NAME> unit MiB mkpart primary <Filesystem Type> <OFFSET_START> <OFFSET_END>
-IMAGE_PT_TABLE_STRUCT="
+IMAGE_PT_TBL_STRUCT="
 1:SLOTA_BOOT_PT:100:220:fat32
 2:SLOTA_ROOTFS:220:3220:ext4
 3:SLOTB_BOOT_PT:3220:3340:fat32
diff --git a/boards/cfg_imx93_base.cfg b/boards/cfg_imx93_base.cfg
index 691a384..cf4f661 100644
--- a/boards/cfg_imx93_base.cfg
+++ b/boards/cfg_imx93_base.cfg
@@ -20,7 +20,7 @@ IMAGE_PT_TBL_LENGTH=512
 # Format: [PARTITION_NAME:<OFFSET_START>:<OFFSET_END>:<Filesystem Type>]
 # Numbers and fs type in this struct will be passed to command directly.
 # sudo parted <PARTITION_NAME> unit MiB mkpart primary <Filesystem Type> <OFFSET_START> <OFFSET_END>
-IMAGE_PT_TABLE_STRUCT="
+IMAGE_PT_TBL_STRUCT="
 1:SLOTA_BOOT_PT:100:220:fat32
 2:SLOTA_ROOTFS:220:3220:ext4
 3:SLOTB_BOOT_PT:3220:3340:fat32
diff --git a/utils/utils.sh b/utils/utils.sh
index b8ad871..91418e3 100644
--- a/utils/utils.sh
+++ b/utils/utils.sh
@@ -159,6 +159,19 @@ function generate_pt_tbl_dualslot()
 		exit -1
 	fi
 
+	case $PT_FMT in
+		MBR)
+			sudo parted ${PT_DISKLABEL} mklabel msdos
+			;;
+		GPT)
+			sudo parted ${PT_DISKLABEL} mklabel gpt
+			;;
+		?)
+			echo "Invalid partition type!"
+			exit -1
+			;;
+	esac
+
 	for each_item in $IMAGE_PT_TBL_STRUCT; do
 		local pt_index=$(echo $each_item | cut -d: -f1)
 		local pt_name=$(echo $each_item | cut -d: -f2)