drush migrate-status returns nothing

In the guide at https://www.drupal.org/node/2350651 it is said to drush migrate-upgrade –legacy-db-url=mysql://user:[email protected]/db –legacy-root=http://mydrupal6site.com –configure-only and “After running migrate-drupal with the –configure-only parameter, you run migrate-status to see the list of possible migrations”. The worst thing, for me, is that I don’t get anything returned to[…]