1 files changed, 14 insertions, 0 deletions
diff --git a/target/linux/ramips/mt7621/base-files/lib/upgrade/platform.sh b/target/linux/ramips/mt7621/base-files/lib/upgrade/platform.sh
index f8aa0373a0..d74aba3bfe 100755
--- a/target/linux/ramips/mt7621/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ramips/mt7621/base-files/lib/upgrade/platform.sh
@@ -5,6 +5,9 @@
 PART_NAME=firmware
 REQUIRE_IMAGE_METADATA=1
 
+RAMFS_COPY_BIN='fw_printenv fw_setenv'
+RAMFS_COPY_DATA='/etc/fw_env.config /var/lock/fw_printenv.lock'
+
 platform_check_image() {
 	return 0
 }
@@ -13,6 +16,17 @@ platform_do_upgrade() {
 	local board=$(board_name)
 
 	case "$board" in
+	alfa-network,quad-e4g)
+		[ "$(fw_printenv -n dual_image 2>/dev/null)" = "1" ] &&\
+		[ -n "$(find_mtd_part backup)" ] && {
+			PART_NAME=backup
+			if [ "$(fw_printenv -n bootactive 2>/dev/null)" = "1" ]; then
+				fw_setenv bootactive 2 || exit 1
+			else
+				fw_setenv bootactive 1 || exit 1
+			fi
+		}
+		;;
 	mikrotik,rb750gr3|\
 	mikrotik,rbm11g|\
 	mikrotik,rbm33g)