scripts: use /sbin/ifconfig where appropriate

image_to_live.sh

 #!/bin/bash
 
 # Copyright (c) 2009-2010 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 update an image onto a live running ChromiumOS instance.
 
 # --- BEGIN COMMON.SH BOILERPLATE ---
 # Load common CrOS utilities.  Inside the chroot this file is installed in
@@ skipping 89 matching lines @@
 # some targets may have dns resolution issues trying to contact back
 # to us.
 function get_hostname {
   local hostname
   # Try to parse ifconfig for ip address. Use sudo, because not all distros
   # allow a common user to call ifconfig.
   # TODO(zbehan): What if target is not connected via eth0? Update over wifi?
   # Dedicated usb NIC? Perhaps this detection should be done in the target,
   # which will get the return address in one way or another. Or maybe we should
   # just open a ssh tunnel and use localhost.
-  hostname=$(sudo ifconfig eth0 |
+  hostname=$(/sbin/ifconfig eth0 |
       grep 'inet addr' |
       cut -f2 -d':' |
       cut -f1 -d' ')
 
   # Fallback to $HOSTNAME if that failed
   [ -z "${hostname}" ] && hostname=${HOSTNAME}
 
   echo ${hostname}
 }
 
@@ skipping 317 matching lines @@
     local release_description=$(echo ${REMOTE_OUT} | cut -d '=' -f 2)
     info "Update was successful and rebooted to $release_description"
   fi
 
   print_time_elapsed
 
   exit 0
 }
 
 main $@