diff --git commands/core/drupal/update_6.inc commands/core/drupal/update_6.inc
index 21278b3..d433bf6 100644
--- commands/core/drupal/update_6.inc
+++ commands/core/drupal/update_6.inc
@@ -282,7 +282,7 @@ function update_main_prepare() {

   require_once './includes/bootstrap.inc';
   // Minimum load of components.
-  drush_bootstrap(DRUSH_BOOTSTRAP_DRUPAL_CONFIGURATION);
+  drush_bootstrap(DRUSH_BOOTSTRAP_DRUPAL_DATABASE);
   require_once './includes/install.inc';
   require_once './includes/file.inc';
   require_once './modules/system/system.install';
@@ -292,6 +292,8 @@ function update_main_prepare() {
   $module_list['system']['filename'] = 'modules/system/system.module';
   $module_list['filter']['filename'] = 'modules/filter/filter.module';
   module_list(TRUE, FALSE, FALSE, $module_list);
+  module_implements('', FALSE, TRUE);
+
   drupal_load('module', 'system');
   drupal_load('module', 'filter');