Fix SAFT operation on Alex.

chromeos_interface.py

 #!/usr/bin/python
 # 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.
 
 '''A module to provide interface to ChromeOS services.'''
 
 import datetime
 import os
 import re
@@ skipping 41 matching lines @@
             if not os.path.exists(self.state_dir):
                 try:
                     os.mkdir(self.state_dir)
                 except OSError, err:
                     raise ChromeOSInterfaceError(err)
             if log_file:
                 self.log_file = os.path.join(state_dir, log_file)
 
     def target_hosted(self):
         '''Return True if running on a ChromeOS target.'''
-        return 'chromeos' in open('/proc/version_signature', 'r').read()
+        signature = open('/proc/version_signature', 'r').read()
+        return re.search(r'chrom(ium|e)os', signature, re.IGNORECASE) != None
 
     def state_dir_file(self, file_name):
         '''Get a full path of a file in the state directory.'''
         return os.path.join(self.state_dir, file_name)
 
     def acpi_file(self, file_name):
         '''Get a full path of a file in the ACPI directory.'''
         return os.path.join(self.acpi_dir, file_name)
 
     def init_environment(self):
@@ skipping 203 matching lines @@
     def read_partition(self, partition, size):
         '''Read the requested partition, up to size bytes.'''
         tmp_file = self.state_dir_file('part.tmp')
         self.run_shell_command('dd if=%s of=%s bs=1 count=%d' % (
                 partition, tmp_file, size))
         fileh = open(tmp_file, 'r')
         data = fileh.read()
         fileh.close()
         os.remove(tmp_file)
         return data