diff --git a/bin/tar2fs b/bin/tar2fs
index 28110cb3..bb562afe 100755
--- a/bin/tar2fs
+++ b/bin/tar2fs
@@ -365,6 +365,7 @@ case "$BOOTLOADER" in
 uboot)
 	EXTLINUX_CONF="$ROOTFS/boot/extlinux/extlinux.conf"
 	sed -i "s/LABEL=ROOT/$ROOTDEV/g" "$EXTLINUX_CONF"
+	parting set "$ROOTPART" boot on
 	;;
 lilo)
 	# configure and install bootloader