> 
> ... you have locked licenses for expensive old CAD software?
> ... vendor has failed to keep their software up to date with operating
> system releases ...
> ... not Scientific Linux's fault.
>

Ah... the sound of Linux walking away from old-time Linux users...

To me it looks like "Linux people" play with python, wayland and systemd
and ignore the needs of long time scientific and industrial linux users
(places like TRIUMF live in both camps).

In my part of the universe, we have Altera Cyclone-I FPGA boards,
the FPGA compiler is Altera Quartus (expensive CAD software),
for sure, latest Altera Quartus is all up to date to run on latest Linux,
but the last Quartus to support Cyclone-I FPGAs is 5 years old out of date
and it will not be updated. But we still need to run it (or throw
all Cyclone-I FPGA hardware into the dumpster).

So, a problem. For solution, what do we hear from the Linux side?

All these answers are not the same:

"here is the fix",
"we will try to help you",
"we tried to help, but failed, sorry",
"it's too hard" and
"not our fault/problem".

Is it "too hard" to provide a solution for the OP and for myself? How come
RHEL/SL/CentOS-8 does not come preinstalled with a package
to "boot an SL3/SL4/SL5/RHEL6/RHEL7 VM image now!". (Yes, we still have
hardware that required an m68k crosscompiler that runs on SL4. We even have
a physical machine for this, a dual 500 MHz Pentium-II tower).

-- 
Konstantin Olchanski
Data Acquisition Systems: The Bytes Must Flow!
Email: olchansk-at-triumf-dot-ca
Snail mail: 4004 Wesbrook Mall, TRIUMF, Vancouver, B.C., V6T 2A3, Canada