if err := cmd.Run(); err != nil {
		return fmt.Errorf("codesign: %v", err)
	}
	return nil
}

// mountDevImage ensures a developer image is mounted on the device.
// The image contains the device lldb server for idevicedebugserverproxy
// to connect to.
func mountDevImage() error {
	// Check for existing mount.
	cmd := idevCmd(exec.Command("ideviceimagemounter", "-l", "-x"))
	out, err := cmd.CombinedOutput()