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

bin/cros_start_vm

 #!/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.
 #
 # Simple wrapper scipt to start a vm using the vm lib.
 
-. "$(dirname $0)/../common.sh"
-. "$(dirname $0)/../lib/cros_vm_lib.sh"
-. "$(dirname "$0")/../lib/cros_vm_constants.sh"
+# --- BEGIN COMMON.SH BOILERPLATE ---
+# Load common CrOS utilities.  Inside the chroot this file is installed in
+# /usr/lib/crosutils.  Outside the chroot we find it relative to the script's
+# location.
+find_common_sh() {
+  local common_paths=(/usr/lib/crosutils "$(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_ROOT}/lib/cros_vm_lib.sh" || die "Unable to load cros_vm_lib.sh"
+. "${SCRIPT_ROOT}/lib/cros_vm_constants.sh" || \
+  die "Unable to load cros_vm_constants.sh"
 
 get_default_board
 
 DEFINE_string board "${DEFAULT_BOARD}" \
     "Board for VM image (unnecessary if path given)"
 DEFINE_string image_path "" "Full path of the VM image"
 
 set -e
 
 # Parse command line.
 FLAGS "$@" || exit 1
 eval set -- "${FLAGS_ARGV}"
 
 # Use latest if not specified.
 if [ -z "${FLAGS_image_path}" ]; then
   LATEST_IMAGE="$(${SCRIPTS_DIR}/get_latest_image.sh \
           --board=${FLAGS_board})/${DEFAULT_QEMU_IMAGE}"
   info "Using latest vm image ${LATEST_IMAGE}"
   FLAGS_image_path=${LATEST_IMAGE}
 fi
 
 [ -e "${FLAGS_image_path}" ] || die "Image ${FLAGS_image_path} does not exist."
 
 start_kvm "${FLAGS_image_path}"
 
 echo "ssh root@${HOSTNAME} -p ${FLAGS_ssh_port} -o StrictHostKeyChecking=no"