[DNG] Installer 'Firmware' partition
On request, Boruch Baum provided a mini-howto to be added to the installer:
"Your install media has been pre-configured with a writable partition labeled 'Firmware' which you may use to load the firmware file. You may now remove the media. From another computer, search for the debian package containing file -------, download its SOURCE package, file name suffix tar.gz, extract the archive, copy the file to the 'Firmware' partitiion, return to this machine, and plug the install media back in."