fix for issue 2610

src/scripts/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 62 matching lines @@
 fi
 
 # Only now can we die on error.  shflags functions leak non-zero error codes,
 # so will die prematurely if 'set -e' is specified before now.
 set -e
 # Die on uninitialized variables.
 set -u
 
 # Check for missing parts.
 # For recovery image, only populate ROOT-A and KERN-A
-# TODO(tgao): write a script to populate ROOT-B and KERN-B
 ROOTFS_IMG="${IMAGEDIR}/rootfs.image"
 if [[ ! -s ${ROOTFS_IMG} ]]; then
   error "Can't find ${ROOTFS_IMG}"
   exit 1
 fi
 
 KERNEL_IMG="${IMAGEDIR}/vmlinuz.image"
 if [[ ! -s ${KERNEL_IMG} ]]; then
   error "Can't find ${KERNEL_IMG}"
   exit 1
@@ skipping 49 matching lines @@
 echo "Copying stateful partition..."
 $sudo dd if=${STATEFUL_IMG} of=${OUTDEV} conv=notrunc bs=512 \
     seek=${START_STATEFUL}
 
 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}

[adlr, 2010/05/20 20:41:22]

wrap this and the next line to 80 cols (you'll need a \ )

[Tan Gao, 2010/05/20 20:50:41]

good style! fixed START_KERN_A line above as well :-)

+
+  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