Add --with_dev_pkgs option to build_image.sh to pull in developer debug packages.

src/scripts/install_packages.sh

 #!/bin/bash
 
 # Copyright (c) 2009 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.
 
 # Script to install packages into the target root file system.
 #
 # NOTE: This script should be called by build_image.sh. Do not run this
 # on your own unless you know what you are doing.
@@ skipping 11 matching lines @@
 # Flags
 DEFINE_string output_dir "" \
   "The location of the output directory to use [REQUIRED]."
 DEFINE_string root ""      \
   "The root file system to install packages in."
 DEFINE_string arch "x86" \
   "The target architecture to build for. One of { x86, armel }."
 DEFINE_string build_root "$DEFAULT_BUILD_ROOT"                \
   "Root of build output"
 DEFINE_string package_list "$DEFAULT_PKGLIST" \
-  "The package list file to use."
+  "Comma separated set of package-list files to use."
 DEFINE_string server "$DEFAULT_EXT_MIRROR" \
   "The package server to use."
 DEFINE_string suite "$DEFAULT_IMG_SUITE" \
   "The package suite to use."
 
 # Parse command line
 FLAGS "$@" || exit 1
 eval set -- "${FLAGS_ARGV}"
 
 # Die on any errors.
@@ skipping 164 matching lines @@
 
 # Set up mounts for working within the rootfs. We copy some basic
 # network information from the host so that maintainer scripts can
 # access the network as needed.
 # TODO: All of this rootfs mount stuff can be removed as soon as we stop
 # running the maintainer scripts on install.
 sudo mount -t proc proc "${ROOT_FS_DIR}/proc"
 sudo cp /etc/hosts "${ROOT_FS_DIR}/etc"
 trap cleanup_rootfs_mounts EXIT
 
-# Install prod packages
-COMPONENTS=`cat $FLAGS_package_list | sed -e 's/#.*//' | grep -v '^ *$' | sed '/$/{N;s/\n/ /;}'`
-sudo APT_CONFIG="$APT_CONFIG" DEBIAN_FRONTEND=noninteractive \
-  apt-get --force-yes install $COMPONENTS
+# Install packages from the given package-lists
+PACKAGE_LISTS=$(echo "$FLAGS_package_list" | sed -e 's/,/ /g')
+for p in $PACKAGE_LISTS; do
+  COMPONENTS=$(cat "$p" |             \
+    sed -e 's/#.*//' |                \
+    grep -v '^ *$' |                  \
+    sed '/$/{N;s/\n/ /;}')
+  sudo APT_CONFIG="$APT_CONFIG" DEBIAN_FRONTEND=noninteractive \
+    apt-get --force-yes install $COMPONENTS
+done
 
 # Create kernel installation configuration to suppress warnings,
 # install the kernel in /boot, and manage symlinks.
 cat <<EOF | sudo dd of="${ROOT_FS_DIR}/etc/kernel-img.conf"
 link_in_boot = yes
 do_symlinks = yes
 minimal_swap = yes
 clobber_modules = yes
 warn_reboot = no
 do_bootloader = no
 do_initrd = yes
 warn_initrd = no
 EOF
 
 # Install the kernel.
 sudo APT_CONFIG="$APT_CONFIG" DEBIAN_FRONTEND=noninteractive \
   apt-get --force-yes install "linux-image-${KERNEL_VERSION}"
 
 # List all packages installed so far, since these are what the local
 # repository needs to contain.
 # TODO: Replace with list_installed_packages.sh when it is fixed up.
 dpkg --root="${ROOT_FS_DIR}" -l > \
   "${OUTPUT_DIR}/package_list_installed.txt"
 
 cleanup_rootfs_mounts
 trap - EXIT