Added empty ext3 filesystem initialization for OEM partner partition.

build_gpt.sh

 #!/bin/bash
 #
 # Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 #
 # Load common constants.  This should be the first executable line.
 # The path to common.sh should be relative to your script's location.
 . "$(dirname "$0")/common.sh"
 
@@ skipping 82 matching lines @@
   error "Can't find ${KERNEL_IMG}"
   exit 1
 fi
 
 STATEFUL_IMG="${IMAGEDIR}/stateful_partition.image"
 if [ ! -s ${STATEFUL_IMG} ] && [ ${FLAGS_recovery} -eq $FLAGS_FALSE ]; then
   error "Can't find ${STATEFUL_IMG}"
   exit 1
 fi
 
+OEM_IMG="${IMAGEDIR}/partner_partition.image"
+if [[ ! -s ${OEM_IMG} ]]; then
+  error "Can't find ${OEM_IMG}"
+  exit 1
+fi
+
 ESP_IMG="${IMAGEDIR}/esp.image"
 if [ ! -s ${ESP_IMG} ] && [ ${FLAGS_recovery} -eq $FLAGS_FALSE ]; then
   error "Can't find ${ESP_IMG}"
   exit 1
 fi
 
 # We'll need some code to put in the PMBR, for booting on legacy BIOS. Some ARM
 # systems will use a U-Boot script temporarily, but it goes in the same place.
 if [[ "$ARCH" = "arm" ]]; then
   PMBRCODE=/dev/zero
 else
   PMBRCODE=$(readlink -f /usr/share/syslinux/gptmbr.bin)
 fi
 
 # Create the GPT. This has the side-effect of setting some global vars
 # describing the partition table entries (see the comments in the source).
 install_gpt $OUTDEV $ROOTFS_IMG $KERNEL_IMG $STATEFUL_IMG $PMBRCODE $ESP_IMG \
-    false $FLAGS_recovery $FLAGS_rootfs_partition_size 
+    false $FLAGS_recovery $FLAGS_rootfs_partition_size
 
 if [[ "$ARCH" = "arm" ]]; then
   # assume /dev/mmcblk1. we could not get this from ${OUTDEV}
   DEVICE=1
   MBR_SCRIPT_UIMG=$(make_arm_mbr \
     ${START_KERN_A} \
     ${NUM_KERN_SECTORS} \
     ${DEVICE} \
     "${FLAGS_arm_extra_bootargs}")
   sudo dd bs=1 count=`stat --printf="%s" ${MBR_SCRIPT_UIMG}` \
      if="$MBR_SCRIPT_UIMG" of=${OUTDEV} conv=notrunc
 fi
 
 # Emit helpful scripts for testers, etc.
 ${SCRIPTS_DIR}/emit_gpt_scripts.sh "${OUTDEV}" "${IMAGEDIR}"
 
 sudo=
 if [ ! -w "$OUTDEV" ] ; then
   # use sudo when writing to a block device.
   sudo=sudo
 fi
 
 # Now populate the partitions.
 echo "Copying stateful partition..."
 $sudo dd if=${STATEFUL_IMG} of=${OUTDEV} conv=notrunc bs=512 \
     seek=${START_STATEFUL}
 
+echo "Copying OEM partition..."
+$sudo dd if=${OEM_IMG} of=${OUTDEV} conv=notrunc bs=512 seek=${START_OEM}
+
 echo "Copying kernel..."
 $sudo dd if=${KERNEL_IMG} of=${OUTDEV} conv=notrunc bs=512 seek=${START_KERN_A}
 
 echo "Copying rootfs..."
 $sudo dd if=${ROOTFS_IMG} of=${OUTDEV} conv=notrunc bs=512 \
     seek=${START_ROOTFS_A}
 
 # TODO(tgao): write a script to populate ROOT-B and KERN-B with user-specified
 # rootfs and kernel. Do NOT remove if block below until then (otherwise
 # chromeos-installer will fail b/c it expects to install from partition B)
 if [ ${FLAGS_recovery} -eq $FLAGS_TRUE ]; then
   echo "Copying kernel B..."
   $sudo dd if=${KERNEL_IMG} of=${OUTDEV} conv=notrunc bs=512 \
       seek=${START_KERN_B}
 
   echo "Copying rootfs B..."
   $sudo dd if=${ROOTFS_IMG} of=${OUTDEV} conv=notrunc bs=512 \
       seek=${START_ROOTFS_B}
 fi
 
 echo "Copying EFI system partition..."
 $sudo dd if=${ESP_IMG} of=${OUTDEV} conv=notrunc bs=512 seek=${START_ESP}
 
 # Clean up temporary files.
 if [[ -n "${MBR_IMG:-}" ]]; then
   rm "${MBR_IMG}"
 fi