From 07da9983c1ae8faac1ff0c6144163d7231c5e520 Mon Sep 17 00:00:00 2001
From: Ivan Davidov <davidov.i@gmail.com>
Date: Mon, 11 Apr 2016 22:23:20 +0300
Subject: [PATCH] Unmount device on overlay failure before continuing to next
 device. Overlay support works from different device without unmounting the
 first device, so this might be a bug in BusyBox.

---
 src/08_generate_rootfs.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/08_generate_rootfs.sh b/src/08_generate_rootfs.sh
index 8e42f4493..221c78be6 100755
--- a/src/08_generate_rootfs.sh
+++ b/src/08_generate_rootfs.sh
@@ -101,6 +101,7 @@ for DEVICE in /dev/* ; do
       OUT=\$?
       if [ ! "\$OUT" = "0" ] ; then
         echo "  Mount failed (probably on vfat), moving on with other devices."
+        umount /tmp/mnt 2>/dev/null
         continue
       fi
     else