Hood Upgrade to Ubuntu 20.04 20210311
From wikidb
References
Sanity Check
Make sure I really know what I have installed
$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic
Remove
Note: All the windows and icons in this section are captured from Ubuntu 20.04.
In the lower left corner on the Ubuntu desktop I selected the "Show Applications" icon.
Performed a search for the "Software & Updates" application. See icon second from the left below.
In the "Software & Updates" application select the "Other Software" tab.
The updater may not know how to upgrade this software so deselect all other software, for example, the RealSeanse packages.