Install test scripts into chroot.

cros_run_vm_update

 #!/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.
 #
 # Updates an existing vm image with another image.
 
-. $(dirname "$(readlink -f "$0")")/outside_chroot_common.sh 2> /dev/null ||
-  SCRIPT_ROOT=/usr/lib/crosutils
-. "${SCRIPT_ROOT}/common.sh" ||
-  (echo "Unable to load common.sh" && false) ||
-  exit 1
+. $(dirname "$(readlink -f "$0")")/outside_chroot_common.sh || exit 1
+. "${SCRIPT_ROOT}/common.sh" || exit 1
 . "${SCRIPT_ROOT}/lib/cros_vm_lib.sh" || die "Unable to load cros_vm_lib.sh"
 
 DEFINE_string payload "" "Full name of the payload to update with."
 DEFINE_string proxy_port "" \
   "Have the client request from this proxy instead of devserver."
 DEFINE_string src_image "" \
   "Create a delta update by passing in the image on the remote machine."
 DEFINE_string stateful_update_flag "" "Flags to pass to stateful update." s
 DEFINE_string image "" "Path of the image to update to." u
 DEFINE_string update_log "update_engine.log" \
@@ skipping 19 matching lines @@
 fi
 
 if [ -n "${FLAGS_payload}" ]; then
   IMAGE_ARGS="--payload=${FLAGS_payload}"
 fi
 
 if [ -n "${FLAGS_proxy_port}" ]; then
   IMAGE_ARGS="${IMAGE_ARGS} --proxy_port=${FLAGS_proxy_port}"
 fi
 
-"${SCRIPTS_DIR}/image_to_live.sh" \
+"${SCRIPT_ROOT}/image_to_live.sh" \
   --for_vm \
   --remote=127.0.0.1 \
   --ssh_port=${FLAGS_ssh_port} \
   --stateful_update_flag=${FLAGS_stateful_update_flag} \
   --src_image="${FLAGS_src_image}" \
   --update_log="${FLAGS_update_log}" \
   --update_url="${FLAGS_update_url}" \
   --verify \
   ${IMAGE_ARGS}