[oe-commits] Jonathan Liu : boot-directdisk: use awk instead of echo -ne for dash compatibility

[git at git.openembedded.org]

Module: openembedded-core.git
Branch: master
Commit: 1928f46e8e9f281e3e64f916048cc9314e125150
URL:    http://git.openembedded.org/?p=openembedded-core.git&a=commit;h=1928f46e8e9f281e3e64f916048cc9314e125150

Author: Jonathan Liu <net147 at gmail.com>
Date:   Sat Jul 20 22:11:20 2013 +1000

boot-directdisk: use awk instead of echo -ne for dash compatibility

The echo command is a dash shell built-in and does not support the
-n and -e options so use awk instead.

This fixes the partition table being corrupted when writing the MBR
disk signature into the image.

[YOCTO #4859]

Signed-off-by: Jonathan Liu <net147 at gmail.com>
Signed-off-by: Saul Wold <sgw at linux.intel.com>

---

 meta/classes/boot-directdisk.bbclass |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/meta/classes/boot-directdisk.bbclass b/meta/classes/boot-directdisk.bbclass
index 182957b..8a55aae 100644
--- a/meta/classes/boot-directdisk.bbclass
+++ b/meta/classes/boot-directdisk.bbclass
@@ -81,7 +81,7 @@ build_boot_dd() {
 	parted $IMAGE set 1 boot on 
 	parted $IMAGE print
 
-	echo -ne "$(echo ${DISK_SIGNATURE} | fold -w 2 | tac | paste -sd '' | sed 's/\(..\)/\\x&/g')" | \
+	awk "BEGIN { printf \"$(echo ${DISK_SIGNATURE} | fold -w 2 | tac | paste -sd '' | sed 's/\(..\)/\\x&/g')\" }" | \
 		dd of=$IMAGE bs=1 seek=440 conv=notrunc
 
 	OFFSET=`expr $END2 / 512`