Request for explanation of error message

[Ralf Mardorf]

On Sat, 27 Jul 2019 20:54:19 +0800, Bret Busby wrote:
>Whilst I do not know how to get uname to show the Ubuntu version
>number, the console shows it as 18.04.2 .

http://manpages.ubuntu.com/manpages/bionic/man1/lsb_release.1.html

[weremouse at moonstudio ~]$ lsb_release -a
LSB Version:	core-9.20160110ubuntu0.2-amd64:core-9.20160110ubuntu0.2-noarch:security-9.20160110ubuntu0.2-amd64:security-9.20160110ubuntu0.2-noarch
Distributor ID:	Ubuntu
Description:	Ubuntu 16.04.6 LTS
Release:	16.04
Codename:	xenial