Before such court shall make such order, the petitioner shall cause to be served on the persons interested a notice in writing that he will apply for such order, in the manner provided by § 8.01-296, at least ten days before such order is to be made; but if such persons, or any of them, do not reside in this Commonwealth, or after due diligence cannot be found therein, an order of publication may be issued as provided by §§ 8.01-316 and 8.01-317.
Va. Code § 8.01-394