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

bin/cros_resign_image.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.
 
 # Script to resign the kernel partition generated in the output of build_image
 # with keys of our choosing.
 
-# Load common constants.  This should be the first executable line.
-# The path to common.sh should be relative to your script's location.
-. "$(dirname "$0")/../common.sh"
+# --- BEGIN COMMON.SH BOILERPLATE ---
+# Load common CrOS utilities.  Inside the chroot this file is installed in
+# /usr/lib/crosutils.  Outside the chroot we find it relative to the script's
+# location.
+find_common_sh() {
+  local common_paths=(/usr/lib/crosutils "$(dirname "$(readlink -f "$0")")/..")
+  local path
 
-. "$(dirname "$0")/../chromeos-common.sh"  # for partoffset and partsize
+  SCRIPT_ROOT=
+  for path in "${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 ---
+
+# Need to be inside the chroot to load chromeos-common.sh
+assert_inside_chroot
+
+# Load functions and constants for chromeos-install
+. "/usr/lib/installer/chromeos-common.sh" || \
+  die "Unable to load /usr/lib/installer/chromeos-common.sh"
 
 locate_gpt
 
 DEFINE_string from "chromiumos_image.bin" \
   "Input file name of Chrome OS image to re-sign."
 DEFINE_string datakey "" \
   "Private Kernel Data Key (.vbprivk) to use for re-signing."
 DEFINE_string keyblock "" \
   "Kernel Keyblock (.keyblock) to use for generating the vblock"
 DEFINE_string to "" \
@@ skipping 62 matching lines @@
 if [ ! -z $FLAGS_vsubkey ]; then
   ${FLAGS_vbutil_dir}load_kernel_test "${FLAGS_to}" "${FLAGS_vsubkey}" \
     ${FLAGS_bootflags}
 fi
 
 echo "New signed image was output to ${FLAGS_to}"
 
 # Clean up temporary files
 rm -f ${temp_kimage}
 rm -f ${temp_out_vb}