drivers/virtualbox/network.go
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
}
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
}
// createHostonlyAdapter creates a new host-only network.