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

bin/cros_run_vm_update

Index: bin/cros_run_vm_update
diff --git a/bin/cros_run_vm_update b/bin/cros_run_vm_update
index 05e035683a547e879f50034e021e86351e65974d..04ca97b9590f4af4f62d00f8cb266685bb9ed8a2 100755
--- a/bin/cros_run_vm_update
+++ b/bin/cros_run_vm_update
@@ -6,8 +6,28 @@
 #
 # Updates an existing vm image with another image.
 
-. "$(dirname $0)/../common.sh"
-. "$(dirname $0)/../lib/cros_vm_lib.sh"
+# --- BEGIN COMMON.SH BOILERPLATE ---
+# Load common CrOS utilities.  Inside the chroot this file is installed in
+# /usr/lib/crosutils.  Outside the chroot we find it relative to the script's
+# location.
+find_common_sh() {
+  local common_paths=(/usr/lib/crosutils "$(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"
 
 DEFINE_string payload "" "Full name of the payload to update with."
 DEFINE_string proxy_port "" \
@@ -43,7 +63,7 @@ if [ -n "${FLAGS_proxy_port}" ]; then
   IMAGE_ARGS="${IMAGE_ARGS} --proxy_port=${FLAGS_proxy_port}"
 fi
 
-$(dirname $0)/../image_to_live.sh \
+"${SCRIPTS_DIR}/image_to_live.sh" \
   --for_vm \
   --remote=127.0.0.1 \
   --ssh_port=${FLAGS_ssh_port} \