Index: /trunk/wp-includes/ms-functions.php =================================================================== --- /trunk/wp-includes/ms-functions.php (revision 21923) +++ /trunk/wp-includes/ms-functions.php (revision 21924) @@ -1128,6 +1128,8 @@ require_once( ABSPATH . 'wp-admin/includes/upgrade.php' ); - if ( $wpdb->get_results("SELECT ID FROM $wpdb->posts") ) + $wpdb->suppress_errors(); + if ( $wpdb->get_results( "DESCRIBE {$wpdb->posts}" ) ) die( __( '
You appear to have already installed WordPress. To reinstall please clear your old database tables first.
' ) . '