Update for UbuntuMATE 16.04.6 broke the GUI

[Bret Busby]

On 25/08/2019, Colin Law <clanlaw at gmail.com> wrote:
> On Sat, 24 Aug 2019 at 21:28, Bret Busby <bret.busby at gmail.com> wrote:
>>
>> On 21/08/2019, Bret Busby <bret.busby at gmail.com> wrote:
>> > On 21/08/2019, Colin Law <clanlaw at gmail.com> wrote:
>> >> On Tue, 20 Aug 2019 at 22:27, Bret Busby <bret.busby at gmail.com> wrote:
>> >>>
>> >>> Hello.
>> >>>
>> >>> A few hours ago, I performed a system update on one of my UbuntuMATE
>> >>> 16.04.6 systems, and it has broken the system.
>
> Try logging in as a different user, that will tell you whether it is
> your profile that has been messed up or whether it is something system
> related.  If you have not got a second user configured then make one,
> it is very easy.
>


No, it is not easy.

I have only one user set up, on each of my systems, from installation; me.

On both of the two broken systems; 16.04.6 and 18.04.3,
sudo adduser
returns

"
adduser: Only one or two names allowed.
"

then, it returns to the prompt.

Both (and, all of my Ubuntu) systems are UbuntuMATE.

-- 
Bret Busby
Armadale
West Australia
..............

"So once you do know what the question actually is,
 you'll know what the answer means."
- Deep Thought,
 Chapter 28 of Book 1 of
 "The Hitchhiker's Guide to the Galaxy:
 A Trilogy In Four Parts",
 written by Douglas Adams,
 published by Pan Books, 1992

....................................................