[HECnet] DECnet for Linux

[Erik Olofsen]

For those interested in running the updated DECnet kernel module
under Ubuntu rather than Slackware, I gave it a go by updating my
machine running 16.04 following the steps at:

>From https://www.maketecheasier.com/build-custom-kernel-ubuntu/

And it was quite easy indeed. [But have plenty of free disk
space, say >20 GB. If the make fails, and you have to start over,
it does a 'clean' first. So even when doing make...]

Of course, after the step to have the kernel source ready,
for example in 'kernelbuild', cd to 'kernelbuild/net' and unzip
the dflkm.zip file, which may be found at RULLFS::