diff --git a/utils/nwztools/scripts/dump_rootfs.sh b/utils/nwztools/scripts/dump_rootfs.sh
index 36e521ce3b..0a5570f050 100644
--- a/utils/nwztools/scripts/dump_rootfs.sh
+++ b/utils/nwztools/scripts/dump_rootfs.sh
@@ -66,8 +66,22 @@ lcdmsg -f /usr/local/bin/font_08x12.bmp -l 0,12 "Dumping rootfs..."
 ROOTFS_TMP_DIR=/tmp/rootfs
 mkdir $ROOTFS_TMP_DIR
 . /install_script/constant.txt
-if ! mount -t ext3 -o ro $COMMON_ROOTFS_PARTITION $ROOTFS_TMP_DIR
-then
+
+# If there is an ext4 mounter, try it. Otherwise or on failure, try ext3 and
+# then ext2.
+# NOTE some platforms probably use an mtd and this might need some fixing
+if [ -e /usr/local/bin/icx_mount.ext4 ]; then
+    /usr/local/bin/icx_mount.ext4 $COMMON_ROOTFS_PARTITION $ROOTFS_TMP_DIR
+else
+    false
+fi
+if [ "$?" != 0 ]; then
+    mount -t ext3 $COMMON_ROOTFS_PARTITION $ROOTFS_TMP_DIR
+fi
+if [ "$?" != 0 ]; then
+    mount -t ext2 $COMMON_ROOTFS_PARTITION $ROOTFS_TMP_DIR
+fi
+if [ "$?" != 0 ]; then
     lcdmsg -f /usr/local/bin/font_08x12.bmp -l 0,13 "ERROR: cannot mount rootfs"
 else
     tar -cf $DUMP_DIR/rootfs.tar $ROOTFS_TMP_DIR