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

create_esp.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.
 
 # Creates an empty ESP image.
 
-. "$(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 ---
 
 get_default_board
 
 # Flags.
 DEFINE_string to "/tmp/esp.img" \
   "Path to esp image (Default: /tmp/esp.img)"
 
 # Parse flags
 FLAGS "$@" || exit 1
 eval set -- "${FLAGS_ARGV}"
 set -e
 
 if [[ -e "${FLAGS_to}" ]]; then
   info "ESP already exists: ${FLAGS_to}"
   exit 0
 fi
 
 info "Creating a new esp image at ${FLAGS_to}" anyway.
 # Create EFI System Partition to boot stock EFI BIOS (but not ChromeOS EFI
 # BIOS).  ARM uses this space to determine which partition is bootable.
 # NOTE: The size argument for mkfs.vfat is in 1024-byte blocks.
 # We'll hard-code it to 16M for now.
 ESP_BLOCKS=16384
 /usr/sbin/mkfs.vfat -C "${FLAGS_to}" ${ESP_BLOCKS}