@classmethod
def change_root_pass(cls, new_password: str, old_password: str) ->bool:
    """
        Change the root password.
        :param new_password: the new root password.
        :param old_password: the old root password.
        :return: status, [success] or [failed]
        """
    if cls._ROOT_PASS == old_password:
        cls._ROOT_PASS = new_password
        return True
    else:
        return False
