diff --git a/core/includes/install.inc b/core/includes/install.inc
index 84dd851..5111916 100644
--- a/core/includes/install.inc
+++ b/core/includes/install.inc
@@ -95,7 +95,7 @@ function drupal_install_profile_distribution_name() {
   // installation state (it might not be saved anywhere yet).
   if (drupal_installation_attempted()) {
     global $install_state;
-    return $install_state['profile_info']['distribution_name'];
+    return isset($install_state['profile_info']['distribution_name']) ? $install_state['profile_info']['distribution_name'] : 'Drupal';
   }
   // At all other times, we load the profile via standard methods.
   else {
diff --git a/core/includes/theme.inc b/core/includes/theme.inc
index 42a0985..d6a90c6 100644
--- a/core/includes/theme.inc
+++ b/core/includes/theme.inc
@@ -389,9 +389,9 @@ function _theme_save_registry($theme, $registry) {
 }
 
 /**
- * Adds mobile friendly meta tags.
+ * Adds mobile friendly meta tags to the head of the HTML page.
  */
-function _theme_mobile_meta_tags() {
+function _theme_add_mobile_meta_tags() {
   $elements = array(
     'MobileOptimized' => array(
       '#tag' => 'meta',
@@ -2845,7 +2845,7 @@ function template_preprocess_html(&$variables) {
   $variables['head_title'] = implode(' | ', $head_title);
 
   // Display the default mobile metatags for responsive design.
-  _theme_mobile_meta_tags();
+  _theme_add_mobile_meta_tags();
 
   // Populate the page template suggestions.
   if ($suggestions = theme_get_suggestions(arg(), 'html')) {
@@ -3136,7 +3136,7 @@ function template_preprocess_maintenance_page(&$variables) {
   }
 
   // Display the default mobile metatags for responsive design.
-  _theme_mobile_meta_tags();
+  _theme_add_mobile_meta_tags();
 
   // Dead databases will show error messages so supplying this template will
   // allow themers to override the page and the content completely.
@@ -3171,24 +3171,27 @@ function template_process_maintenance_page(&$variables) {
 /**
  * Process variables for install-page.tpl.php.
  *
- * Calls template_preprocess_install_page() to modify the $variables
+ * Calls template_preprocess_maintenance_page() to modify the $variables
  * array.
  *
  * The $variables array contains the following arguments:
  * - $content
  *
  * @see install-page.tpl.php
- * @see template_preprocess_install_page()
+ * @see template_preprocess_maintenance_page()
  */
 function template_preprocess_install_page(&$variables) {
- template_preprocess_maintenance_page($variables);
+  template_preprocess_maintenance_page($variables);
+  // Override the site name that is displayed on the page, since Drupal is
+  // still in the process of being installed.
+  $variables['site_name'] = drupal_install_profile_distribution_name();
 }
 
 /**
- * Theme process function for theme_install_page().
+ * Theme process function for install-page.tpl.php.
  *
  * The variables array generated here is a mirror of template_process_html().
- * This processor will run its course when theme_install_page() is invoked.
+ * This processor will run its course when theme('install_page') is invoked.
  *
  * @see install-page.tpl.php
  * @see template_process_html()
diff --git a/core/themes/seven/seven.theme b/core/themes/seven/seven.theme
index 9be4ab6..dfcf674 100644
--- a/core/themes/seven/seven.theme
+++ b/core/themes/seven/seven.theme
@@ -135,9 +135,6 @@ function seven_preprocess_install_page(&$variables) {
   drupal_add_js(drupal_get_path('theme', 'seven') . '/js/mobile.install.js');
   drupal_add_css(drupal_get_path('theme', 'seven') . '/install-page.css', array('group' => CSS_AGGREGATE_THEME));
   $variables['attributes']['class'][] = 'install-page';
-  if(empty($variables['site_name'])) {
-     $variables['site_name'] = 'Drupal';
-  }
 }
 
 /**