[OE-core] [PATCH] image_types: preserve rootfs if mkext234fs() fails

[Saul Wold]

We have seen more failures, but have not been able to directly reproduce
it maybe svaing the rootfs and it contains some content that is tripping
up the e2fsprogs mkfs.ext4 populate_rootfs() function

Signed-off-by: Saul Wold <sgw at linux.intel.com>
---
 meta/classes/image_types.bbclass | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/meta/classes/image_types.bbclass b/meta/classes/image_types.bbclass
index 9188bed4197..6b4f39ed274 100644
--- a/meta/classes/image_types.bbclass
+++ b/meta/classes/image_types.bbclass
@@ -86,9 +86,14 @@ oe_mkext234fs () {
 	bbdebug 1 Executing "dd if=/dev/zero of=${IMGDEPLOYDIR}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.$fstype seek=$ROOTFS_SIZE count=$COUNT bs=1024"
 	dd if=/dev/zero of=${IMGDEPLOYDIR}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.$fstype seek=$ROOTFS_SIZE count=$COUNT bs=1024
 	bbdebug 1 "Actual Rootfs size:  `du -s ${IMAGE_ROOTFS}`"
-	bbdebug 1 "Actual Partion size: `ls -s ${IMGDEPLOYDIR}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.$fstype`"
+	bbdebug 1 "Actual Partion size: `ls -l ${IMGDEPLOYDIR}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.$fstype`"
 	bbdebug 1 Executing "mkfs.$fstype -F $extra_imagecmd ${IMGDEPLOYDIR}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.$fstype -d ${IMAGE_ROOTFS}"
 	mkfs.$fstype -F $extra_imagecmd ${IMGDEPLOYDIR}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.$fstype -d ${IMAGE_ROOTFS}
+	if [ $? -ne 0 ]; then
+		tmp_saved_rootfs=`mktemp -d -p /tmp saved_rootfs.XXXXX`
+		cp -r ${IMAGE_ROOTFS} $tmp_saved_rootfs
+	fi
+
 	# Error codes 0-3 indicate successfull operation of fsck (no errors or errors corrected)
 	fsck.$fstype -pvfD ${IMGDEPLOYDIR}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.$fstype || [ $? -le 3 ]
 }
-- 
2.13.6