diff --git a/package/base-files/files/lib/upgrade/common.sh b/package/base-files/files/lib/upgrade/common.sh
index d3938b9996..33bb1f02e1 100755
--- a/package/base-files/files/lib/upgrade/common.sh
+++ b/package/base-files/files/lib/upgrade/common.sh
@@ -82,7 +82,6 @@ get_image() { # <source> [ <command> ]
 		local magic="$(dd if="$from" bs=2 count=1 2>/dev/null | hexdump -n 2 -e '1/1 "%02x"')"
 		case "$magic" in
 			1f8b) cmd="zcat";;
-			425a) cmd="bzcat";;
 			*) cmd="cat";;
 		esac
 	fi
diff --git a/package/base-files/files/lib/upgrade/stage2 b/package/base-files/files/lib/upgrade/stage2
index e491dda94c..043599658f 100755
--- a/package/base-files/files/lib/upgrade/stage2
+++ b/package/base-files/files/lib/upgrade/stage2
@@ -47,7 +47,7 @@ switch_to_ramfs() {
 	for binary in \
 		/bin/busybox /bin/ash /bin/sh /bin/mount /bin/umount	\
 		pivot_root mount_root reboot sync kill sleep		\
-		md5sum hexdump cat zcat bzcat dd tar			\
+		md5sum hexdump cat zcat dd tar				\
 		ls basename find cp mv rm mkdir rmdir mknod touch chmod \
 		'[' printf wc grep awk sed cut				\
 		mtd partx losetup mkfs.ext4				\
diff --git a/package/utils/busybox/Config-defaults.in b/package/utils/busybox/Config-defaults.in
index b6e3d7f35a..91d1c418ef 100644
--- a/package/utils/busybox/Config-defaults.in
+++ b/package/utils/busybox/Config-defaults.in
@@ -351,10 +351,10 @@ config BUSYBOX_DEFAULT_FEATURE_GUNZIP_LONG_OPTIONS
 	default n
 config BUSYBOX_DEFAULT_BUNZIP2
 	bool
-	default y
+	default n
 config BUSYBOX_DEFAULT_BZCAT
 	bool
-	default y
+	default n
 config BUSYBOX_DEFAULT_UNLZMA
 	bool
 	default n