This starts to fix the scripts so that they load from /usr/lib/crosutils

get_package_list

 #!/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.
 
 # Lists all package dependencies of a particular package.  Useful to find out
 # all packages depended on by chromeos and chromeos-dev.
 
-. "$(dirname "$0")/common.sh"
+# --- BEGIN COMMON.SH BOILERPLATE ---
+# Load common CrOS utilities.  Inside the chroot this file is installed in
+# /usr/lib/crosutils.  Outside the chroot we find it relative to the script's
+# location.
+find_common_sh() {
+  local common_paths=(/usr/lib/crosutils $(dirname "$(readlink -f "$0")"))
+  local path
+
+  SCRIPT_ROOT=
+  for path in "${common_paths[@]}"; do
+    if [ -r "${path}/common.sh" ]; then
+      SCRIPT_ROOT=${path}
+      break
+    fi
+  done
+}
+
+find_common_sh
+. "${SCRIPT_ROOT}/common.sh" || (echo "Unable to load common.sh" && exit 1)
+# --- END COMMON.SH BOILERPLATE ---
 
 # Script must be run inside the chroot.
 assert_inside_chroot
 
 get_default_board
 
 # Flags.
 DEFINE_string board "$DEFAULT_BOARD" \
   "The board for which the image was built." b
 
 # Parse flags.
 FLAGS "$@" || exit 1
 eval set -- "${FLAGS_ARGV}"
 
 [[ -z "${FLAGS_board}" ]] && die "A board must be specified."
 
 if [[ -z "${FLAGS_ARGV}" ]]; then
   warn "Please specify package."
   die "Usage:  ./get_package_list.sh chromeos-base/chromeos > package.list"
 fi
 
 emerge-$FLAGS_board --emptytree --usepkgonly -p -v --columns \
   $1 2> /dev/null | cut -d ' ' -f 8 | grep '/'