diff --git a/core/includes/install.core.inc b/core/includes/install.core.inc
index 914e20d..6f4b859 100644
--- a/core/includes/install.core.inc
+++ b/core/includes/install.core.inc
@@ -253,9 +253,19 @@ function install_state_defaults() {
  *   modified with information gleaned from the beginning of the page request.
  */
 function install_begin_request(&$install_state) {
+  // A request object from the HTTPFoundation to tell us about the request.
+  $request = Request::createFromGlobals();
+
+  // Create a minimal container for t() and request to work. This container will
+  // be overriden but it needed for the very early installation process when
+  // database tasks run.
+  $container = new ContainerBuilder();
+  $container->set('request', $request);
+  \Drupal::setContainer($container);
+
   // Add any installation parameters passed in via the URL.
   if ($install_state['interactive']) {
-    $install_state['parameters'] += \Drupal::request()->query->all();
+    $install_state['parameters'] += $request->query->all();
   }
 
   // Validate certain core settings that are used throughout the installation.
@@ -288,13 +298,10 @@ function install_begin_request(&$install_state) {
   // _drupal_load_test_overrides() sets the simpletest_conf_path in-memory
   // setting in this case.
   if ($install_state['interactive'] && drupal_valid_test_ua() && !settings()->get('simpletest_conf_path')) {
-    header($_SERVER['SERVER_PROTOCOL'] . ' 403 Forbidden');
+    header($request->server->get('SERVER_PROTOCOL') . ' 403 Forbidden');
     exit;
   }
 
-  // A request object from the HTTPFoundation to tell us about the request.
-  $request = Request::createFromGlobals();
-
   // If we have a language selected and it is not yet saved in the system
   // (eg. pre-database data screens we are unable to persistently store
   // the default language), we should set language_default so the proper
@@ -324,10 +331,6 @@ function install_begin_request(&$install_state) {
   // Determine whether the configuration system is ready to operate.
   $install_state['config_verified'] = install_verify_config_directory(CONFIG_ACTIVE_DIRECTORY) && install_verify_config_directory(CONFIG_STAGING_DIRECTORY);
 
-  // Create a minimal container for t() to work.
-  // This container will be overriden but it needed for the very early
-  // installation process when database tasks run.
-  $container = new ContainerBuilder();
   // Register the translation services.
   install_register_translation_service($container);
   \Drupal::setContainer($container);
diff --git a/core/profiles/standard/standard.profile b/core/profiles/standard/standard.profile
index d554c93..209107d 100644
--- a/core/profiles/standard/standard.profile
+++ b/core/profiles/standard/standard.profile
@@ -11,5 +11,5 @@
  */
 function standard_form_install_configure_form_alter(&$form, $form_state) {
   // Pre-populate the site name with the server name.
-  $form['site_information']['site_name']['#default_value'] = $_SERVER['SERVER_NAME'];
+  $form['site_information']['site_name']['#default_value'] = \Drupal::request()->server->get('SERVER_NAME');
 }