build_image: Always build with serial output enabled.
This is factory-branch-only change.
BUG=chrome-os-partner:38520
TEST=./build_image factory_test
Change-Id: I838882a87b0d5dd439a67c5ce3efee816fb87914
Reviewed-on: https://chromium-review.googlesource.com/262852
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Commit-Queue: Hung-Te Lin <hungte@chromium.org>
Tested-by: Hung-Te Lin <hungte@chromium.org>
diff --git a/build_image b/build_image
index 5ea9641..988ebb4 100755
--- a/build_image
+++ b/build_image
@@ -27,7 +27,7 @@
"Directory in which to place image result directories (named by version)"
DEFINE_string disk_layout "default" \
"The disk layout type to use for this image."
-DEFINE_string enable_serial "" \
+DEFINE_string enable_serial "ttyMSM0" \
"Enable serial port for printks. Example values: ttyS0"
DEFINE_integer loglevel 7 \
"The loglevel to add to the kernel command line."
