[nmglug] How to safely replace a Buster/stable package with a Stretch/oldstable package and maintain it?

J. Marsden DeLapp jmdelapp at delapp.com
Thu May 14 09:44:07 PDT 2020

On Thu, 14 May 2020 09:55:07 -0600
Tom Ashcraft <trailerdog234 at comcast.net> wrote:

> Greetings Debianistas,
> People usually seem to complain that the problem with Debian is the 
> default preference for older packages, but in this case the problem 
> seems to be exactly the other way around.

You can use apt pinning and apt preferences to keep a package from

man apt_preferences

I have no idea how to undo an update and install older packages. I
looked into doing that once and came to the conclusion that was a risky
thing to do and was likely to result in a broken system.


J. Marsden DeLapp, PE
DeLapp & Associates, Inc. dba DeLapp Engineering.
Providing lighting and power planning, design and analysis services
for commercial, industrial and large residential facilities.
1190 Harrison Road Ste 3a
Santa Fe NM 87507
(505) 983-5557

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