root->add_child("Device")->add_child_text(_device);
for (auto i: _mount_points) {
root->add_child("MountPoint")->add_child_text(i.string());
root->add_child("Device")->add_child_text(_device);
for (auto i: _mount_points) {
root->add_child("MountPoint")->add_child_text(i.string());