Install Updates Error Log (appgrid PPA and speedtest-cli)

[stevef]

Please post the results of these two commands.

As requested before, to show all the repositories on your system

Code:

inxi -r

To show the ownership of the file you need to edit in order to fix the ookla problem.

Code:

ls -l /etc/apt/sources.list.d/

[Zyk0s]

https://prnt.sc/kqrYjTEreu6X

https://prnt.sc/TIQn7pJvrM0y

[stevef]

There does not appear to be anything that could stop the nano command provided in the ookla article instructions from working properly. Are you sure it was entered exactly as shown with the sudo prefix.

[stevef]

What steps have you been using to save and exit from nano after making the change ?

I've noticed your screenshot has a GUI message saying the system didn't save the changes.  This is unusual but I can't reproduce it.  Nano should be entirely terminal based - so a GUI error message implies you may be exiting incorrectly. 

One way to save and exit from Nano is by pressing Ctrl and X together while in the terminal window (after doing the edits).  Nano should then ask if you want to save the file and what name to use.

Try this method of exiting.