=== para tener el escritorio XFCE en Raspberry Pi ===

instalar la version **lite**, sin escritorio, del raspberry pi OS.\\
  apt update
  apt full-upgrade
  apt clean
  reboot
  -------
  apt install tasksel
  tasksel    (y seleccionar escritorio xfce)
  apt install lightdm
  raspi-config
      |--System--->Option--->Boot--->Desktop GUI
                                |--->Auto login