[
{ type: install
  message: <<EOM
The rpi-firmware package installs files to /usr/local/share/rpi-firmware/.
To update the firmware used to boot, copy these files to /boot/msdos,
and then copy the appropriate config_<type>.txt file to
/boot/msdos/config.txt.

For example, on a Raspberry Pi 4 Model B,

  cp -pr /usr/local/share/rpi-firmware/* /boot/msdos/
  cp /boot/msdos/config_rpi4.txt /boot/msdos/config.txt
EOM
}
]