In Lambda server root account.
$sudo apt update
install the necessary packages (python, nvidia docker etc)
$sudo apt upgrade
This runs for a while, with many heading on focal shown on screen
chose N to keep ssh_config
13:20, a gui-window popped-up, chose English US as keyboard
13:22, Yes to restart service
13:29 close all chromium browser window update
INFO waiting for automatic snapd to restart
13:31, passed, and moving forward, many lines printed on screen
13:39, updating database for manual pages ........
13:48 searching for obsolete software
13:58 fetch and download can take several hours, continue? chose Yes.
13:59. system update is complete. Restart? Yes.
14:02, user log in window appeared.
Run partial update using "software & update" tool as lambda root.
TODO: need to test cuda and GPU support.
