diff --git c/core/authorize.php w/core/authorize.php
index ae53628..8a76fe4 100644
--- c/core/authorize.php
+++ w/core/authorize.php
@@ -20,8 +20,6 @@
  * @link authorize Authorized operation helper functions @endlink
  */
 
-use Symfony\Component\HttpFoundation\Request;
-
 // Change the directory to the Drupal root.
 chdir('..');
 
@@ -73,9 +71,6 @@ function authorize_access_allowed() {
 // variables, however, so we have access to the class autoloader.
 drupal_bootstrap(DRUPAL_BOOTSTRAP_VARIABLES);
 
-$request = Request::createFromGlobals();
-Drupal::getContainer()->set('request', $request);
-
 // This must go after drupal_bootstrap(), which unsets globals!
 global $conf;
 
@@ -141,8 +136,8 @@ function authorize_access_allowed() {
     $output .= theme('item_list', array('items' => $links, 'title' => t('Next steps')));
   }
   // If a batch is running, let it run.
-  elseif ($request->query->has('batch')) {
-    $output = _batch_page($request);
+  elseif (isset($_GET['batch'])) {
+    $output = _batch_page();
   }
   else {
     if (empty($_SESSION['authorize_operation']) || empty($_SESSION['authorize_filetransfer_info'])) {
diff --git c/core/includes/batch.inc w/core/includes/batch.inc
index 32cd8eb..569ce58 100644
--- c/core/includes/batch.inc
+++ w/core/includes/batch.inc
@@ -16,27 +16,23 @@
 
 use Drupal\Core\Batch\Percentage;
 use Symfony\Component\HttpFoundation\JsonResponse;
-use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\RedirectResponse;
 
 /**
  * Renders the batch processing page based on the current state of the batch.
  *
- * @param \Symfony\Component\HttpFoundation\Request $request
- *   The current request object.
- *
  * @see _batch_shutdown()
  */
-function _batch_page(Request $request) {
+function _batch_page() {
   $batch = &batch_get();
 
-  if (!($request_id = $request->get('id'))) {
+  if (!isset($_REQUEST['id'])) {
     return FALSE;
   }
 
   // Retrieve the current state of the batch.
   if (!$batch) {
-    $batch = Drupal::service('batch.storage')->load($request_id);
+    $batch = Drupal::service('batch.storage')->load($_REQUEST['id']);
     if (!$batch) {
       drupal_set_message(t('No active batch.'), 'error');
       return new RedirectResponse(url('<front>', array('absolute' => TRUE)));
@@ -55,7 +51,7 @@ function _batch_page(Request $request) {
     }
   }
 
-  $op = $request->get('op', '');
+  $op = isset($_REQUEST['op']) ? $_REQUEST['op'] : '';
   $output = NULL;
   switch ($op) {
     case 'start':
diff --git c/core/includes/install.core.inc w/core/includes/install.core.inc
index b8212d2..0a2cb29 100644
--- c/core/includes/install.core.inc
+++ w/core/includes/install.core.inc
@@ -652,7 +652,7 @@ function install_run_task($task, &$install_state) {
     // any output from the batch process, until the task is complete.
     elseif ($current_batch == $function) {
       include_once __DIR__ . '/batch.inc';
-      $output = _batch_page(Drupal::request());
+      $output = _batch_page();
       // Because Batch API now returns a JSON response for intermediary steps,
       // but the installer doesn't handle Response objects yet, just send the
       // output here and emulate the old model.
diff --git c/core/modules/system/lib/Drupal/system/Controller/BatchController.php w/core/modules/system/lib/Drupal/system/Controller/BatchController.php
index 53e8823..718fec4 100644
--- c/core/modules/system/lib/Drupal/system/Controller/BatchController.php
+++ w/core/modules/system/lib/Drupal/system/Controller/BatchController.php
@@ -27,7 +27,7 @@ class BatchController {
    */
   public function batchPage(Request $request) {
     require_once DRUPAL_ROOT . '/core/includes/batch.inc';
-    $output = _batch_page($request);
+    $output = _batch_page();
 
     if ($output === FALSE) {
       throw new AccessDeniedHttpException();
diff --git c/core/update.php w/core/update.php
index 7a094cc..ac36b2a 100644
--- c/core/update.php
+++ w/core/update.php
@@ -432,8 +432,6 @@ function update_check_requirements($skip_warnings = FALSE) {
   }
 }
 
-// @todo Refactor this.
-
 // Some unavoidable errors happen because the database is not yet up-to-date.
 // Our custom error handler is not yet installed, so we just suppress them.
 ini_set('display_errors', FALSE);
@@ -454,8 +452,11 @@ function update_check_requirements($skip_warnings = FALSE) {
 drupal_session_initialize();
 
 // A request object from the HTTPFoundation to tell us about the request.
+// @todo These two lines were copied from index.php which has its own todo about
+// a change required here. Revisit this when that change has been made.
 $request = Request::createFromGlobals();
-Drupal::getContainer()->set('request', $request);
+drupal_container()
+  ->set('request', $request);
 
 // Ensure that URLs generated for the home and admin pages don't have 'update.php'
 // in them.
@@ -554,7 +555,7 @@ function update_check_requirements($skip_warnings = FALSE) {
     // Regular batch ops : defer to batch processing API.
     default:
       update_task_list('run');
-      $output = _batch_page($request);
+      $output = _batch_page();
       break;
   }
 }