code: func createHostonlyAdapter(vbox VBoxManager) (*hostOnlyNetwork, error) {
  	if runtime.GOOS == "windows" {
  		log.Warn("Windows might ask for the permission to create a network adapter. Sometimes, such confirmation window is minimized in the taskbar.")
  	}
  
  	out, err := vbox.vbmOut("hostonlyif", "create")
  	if err != nil {
  		return nil, err
  	}
  
  	res := reHostOnlyAdapterCreated.FindStringSubmatch(string(out))
  	if res == nil {
  		return nil, errors.New("Failed to create host-only adapter")
  	}
  
  	return &hostOnlyNetwork{Name: res[1]}, nil
  }
docs: // createHostonlyAdapter creates a new host-only network.