diff --git a/target/linux/layerscape/base-files/lib/upgrade/platform.sh b/target/linux/layerscape/base-files/lib/upgrade/platform.sh
index e6c2767ed9..9c3d156c7f 100644
--- a/target/linux/layerscape/base-files/lib/upgrade/platform.sh
+++ b/target/linux/layerscape/base-files/lib/upgrade/platform.sh
@@ -60,7 +60,7 @@ platform_copy_config_sdboot() {
 	if export_partdevice partdev 1; then
 		mount -t $parttype -o rw,noatime "/dev/$partdev" /mnt 2>&1
 		echo "Saving config backup..."
-		cp -af "$CONF_TAR" "/mnt/$CONF_TAR"
+		cp -af "$CONF_TAR" "/mnt/sysupgrade.tgz"
 		umount /mnt
 	fi
 }
diff --git a/target/linux/mediatek/mt7622/base-files/lib/preinit/79_move_config b/target/linux/mediatek/mt7622/base-files/lib/preinit/79_move_config
index 0112a96929..1d1c4b831c 100644
--- a/target/linux/mediatek/mt7622/base-files/lib/preinit/79_move_config
+++ b/target/linux/mediatek/mt7622/base-files/lib/preinit/79_move_config
@@ -12,7 +12,7 @@ move_config() {
 		insmod vfat
 		mkdir -p /recovery
 		mount -o rw,noatime $RECOVERY_PART /recovery
-		[ -f "/recovery/$CONF_TAR" ] && mv -f "/recovery/$CONF_TAR" /
+		[ -f "/recovery/sysupgrade.tgz" ] && mv -f "/recovery/sysupgrade.tgz" /
 		umount /recovery
 	fi
 }
diff --git a/target/linux/mediatek/mt7622/base-files/lib/upgrade/platform.sh b/target/linux/mediatek/mt7622/base-files/lib/upgrade/platform.sh
index 5efea1bcef..b43001940c 100755
--- a/target/linux/mediatek/mt7622/base-files/lib/upgrade/platform.sh
+++ b/target/linux/mediatek/mt7622/base-files/lib/upgrade/platform.sh
@@ -40,7 +40,7 @@ platform_check_image() {
 platform_copy_config_emmc() {
 	mkdir -p /recovery
 	mount -o rw,noatime /dev/mmcblk0p6 /recovery
-	cp -af "$CONF_TAR" "/recovery/$CONF_TAR"
+	cp -af "$CONF_TAR" "/recovery/sysupgrade.tgz"
 	sync
 	umount /recovery
 }
diff --git a/target/linux/mediatek/mt7623/base-files/lib/preinit/79_move_config b/target/linux/mediatek/mt7623/base-files/lib/preinit/79_move_config
index fafeb32e49..3e1264ac79 100644
--- a/target/linux/mediatek/mt7623/base-files/lib/preinit/79_move_config
+++ b/target/linux/mediatek/mt7623/base-files/lib/preinit/79_move_config
@@ -28,7 +28,7 @@ move_config() {
 		insmod vfat
 		mkdir -p /recovery
 		mount -o rw,noatime "/dev/$partdev" -t vfat /recovery
-		[ -f "/recovery/$CONF_TAR" ] && mv -f "/recovery/$CONF_TAR" /
+		[ -f "/recovery/sysupgrade.tgz" ] && mv -f "/recovery/sysupgrade.tgz" /
 		umount /recovery
 	fi
 }
diff --git a/target/linux/mediatek/mt7623/base-files/lib/upgrade/platform.sh b/target/linux/mediatek/mt7623/base-files/lib/upgrade/platform.sh
index bc27d4be5b..c3a9b81053 100755
--- a/target/linux/mediatek/mt7623/base-files/lib/upgrade/platform.sh
+++ b/target/linux/mediatek/mt7623/base-files/lib/upgrade/platform.sh
@@ -188,7 +188,7 @@ platform_copy_config() {
 		if [ -n "$recoverydev" ]; then
 			mkdir -p /tmp/recovery
 			mount -o rw,noatime "/dev/$recoverydev" -t vfat /tmp/recovery
-			cp -af "$CONF_TAR" "/tmp/recovery/$CONF_TAR"
+			cp -af "$CONF_TAR" "/tmp/recovery/sysupgrade.tgz"
 			sync
 			umount /tmp/recovery
 		fi
diff --git a/target/linux/mvebu/cortexa9/base-files/lib/preinit/81_linksys_syscfg b/target/linux/mvebu/cortexa9/base-files/lib/preinit/81_linksys_syscfg
index 1cbb2738c2..dad73900b8 100644
--- a/target/linux/mvebu/cortexa9/base-files/lib/preinit/81_linksys_syscfg
+++ b/target/linux/mvebu/cortexa9/base-files/lib/preinit/81_linksys_syscfg
@@ -27,12 +27,12 @@ preinit_mount_syscfg() {
 		fi
 		mkdir /tmp/syscfg
 		mount -t ubifs ubi1:syscfg /tmp/syscfg
-		[ -f "/tmp/syscfg/$CONF_TAR" ] && {
+		[ -f "/tmp/syscfg/sysupgrade.tgz" ] && {
 		echo "- config restore -"
 		cd /
-		mv "/tmp/syscfg/$CONF_TAR" /tmp
-		tar xzf "/tmp/$CONF_TAR"
-		rm -f "/tmp/$CONF_TAR"
+		mv "/tmp/syscfg/sysupgrade.tgz" /tmp
+		tar xzf "$CONF_TAR"
+		rm -f "$CONF_TAR"
 		sync
 		}
 		;;
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 14d9281d4a..b900f33dd1 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/$partdev" /mnt; then
-			if [ -f "/mnt/$CONF_TAR" ]; then
-				mv -f "/mnt/$CONF_TAR" /
+			if [ -f "/mnt/sysupgrade.tgz" ]; then
+				mv -f "/mnt/sysupgrade.tgz" /
 			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 a1d1e04ae7..3177892171 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/$CONF_TAR"
+		cp -af "$CONF_TAR" "/mnt/sysupgrade.tgz"
 		umount /mnt
 	fi
 }