Index: includes/bootstrap.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/bootstrap.inc,v
retrieving revision 1.433
diff -u -9 -p -r1.433 bootstrap.inc
--- includes/bootstrap.inc	25 Oct 2010 00:06:19 -0000	1.433
+++ includes/bootstrap.inc	25 Oct 2010 21:06:42 -0000
@@ -660,35 +660,32 @@ function drupal_settings_initialize() {
 function drupal_get_filename($type, $name, $filename = NULL) {
   // The location of files will not change during the request, so do not use
   // drupal_static().
   static $files = array();
 
   if (!isset($files[$type])) {
     $files[$type] = array();
   }
 
-  if (!empty($filename) && file_exists($filename)) {
+  if (!empty($filename)) {
     $files[$type][$name] = $filename;
   }
   elseif (isset($files[$type][$name])) {
     // nothing
   }
   // Verify that we have an active database connection, before querying
   // the database. This is required because this function is called both
   // before we have a database connection (i.e. during installation) and
   // when a database connection fails.
   else {
     try {
       if (function_exists('db_query')) {
-        $file = db_query("SELECT filename FROM {system} WHERE name = :name AND type = :type", array(':name' => $name, ':type' => $type))->fetchField();
-        if (file_exists(DRUPAL_ROOT . '/' . $file)) {
-          $files[$type][$name] = $file;
-        }
+        $files[$type][$name] = db_query("SELECT filename FROM {system} WHERE name = :name AND type = :type", array(':name' => $name, ':type' => $type))->fetchField();
       }
     }
     catch (Exception $e) {
       // The database table may not exist because Drupal is not yet installed,
       // or the database might be down. We have a fallback for this case so we
       // hide the error completely.
     }
     // Fallback to searching the filesystem if the database could not find the
     // file or the file returned by the database is not found.
Index: includes/update.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/update.inc,v
retrieving revision 1.79
diff -u -9 -p -r1.79 update.inc
--- includes/update.inc	25 Oct 2010 00:06:19 -0000	1.79
+++ includes/update.inc	25 Oct 2010 21:06:43 -0000
@@ -730,18 +730,23 @@ function update_fix_d7_requirements() {
  * path based on their schema version in the system table.
  *
  * The install profile will be set to schema_version 0, as it has already been
  * installed. Any other hook_update_N functions provided by the install profile
  * will be run by update.php.
  */
 function update_fix_d7_install_profile() {
   $profile = drupal_get_profile();
 
+  // 'Default' profile has been renamed to 'Standard', see system_update_7049().
+  if ($profile == 'default') {
+    $profile = 'standard';
+  }
+
   $results = db_select('system', 's')
     ->fields('s', array('name', 'schema_version'))
     ->condition('name', $profile)
     ->condition('type', 'module')
     ->execute()
     ->fetchAll();
 
   if (empty($results)) {
     $filename = 'profiles/' . $profile . '/' . $profile . '.profile';