Linux puskom-ProLiant-DL385-Gen10 5.4.0-150-generic #167~18.04.1-Ubuntu SMP Wed May 24 00:51:42 UTC 2023 x86_64

/home/puskom/backup2024/06juni2024/web/febis/wp-admin/

//home/puskom/backup2024/06juni2024/web/febis/wp-admin/ms-upgrade-network.php

 <?php
/**
 * Multisite upgrade administration panel.
 *
 * @package WordPress
 * @subpackage Multisite
 * @since 3.0.0
 */

require_once __DIR__ . '/admin.php';

wp_redirect( network_admin_url( 'upgrade.php' ) );
exit;