Cannot upgrade to Catalina

Thanks again fro your very informative and quick help, leroydouglas.

My 4th attempt at downloading Catalina installer worked well, so luckily I did not have to do more than wait patiently.

Your assurance that Catalina works well inspires me to learn its features asap; I already started!

Kind regards!

Thanks for your quick answer and references, leroydouglas.

As far as I can see, all requirements are met. Unluckily the upgrade still does not execute.

It repeatedly gobbles up 8GB of data bundle per attempt (4 so far), then briefly show that there was a problem (no fault code or tips) and resets to my current setting of macOS Mojave ver 10.14.6.

Maybe I should wait for a Catalina software upgrade first; especially because many people seem to run into problems with the current version of Catalina?