Klaus Cook wrote:

> I am 80 years old and retired after a career in Systems programming and
> consulting, but I� am a complete novice when it comes to Linux. I have
> decided to try Ubuntu 20.04 and as part of the learning process I decided
> to install the Trinity Desktop Environment.
> 
> After struggling through the installation I finally was able to get the
> installation to run without errors, however, the Desktop does not activate
> when logging into Ubuntu. Also, Trinity is not listed in the "sessions"
> list on the log in page.
> 
> 1. Is there anyway to check if the installation was completed correctly?
> 
> 2. How do I activate the desktop if the installation was correct?
> 
> Thank you,
> Klaus Cook
> Houston, TX
> 
> 

May be it is better to try some live image first (CD, DVD or USB). No need
to install just copy the image to a USB (I prefer USB, cause easy to
maintaine and rewritable)

For example
http://mirror.ppa.trinitydesktop.org/trinity/cdimages/ubuntu/focal/

or Slax
https://wiki.trinitydesktop.org/Slax_with_Trinity