Ubuntu 16.04.7 LTS: xenial-pgdg Release' does not have a Release file.

[Grizzly]

23 September 2022  at 15:20, Ralf Mardorf via ubuntu-users wrote:
Re: Ubuntu 16.04.7 LTS: xenial-pgdg (at least in part)

>On Fri, 2022-09-23 at 12:24 +0000, Jonesy via ubuntu-users wrote:
>> On Fri, 23 Sep 2022 09:15:00 +0200, robert rottermann wrote:
>> > Hi Colleagues

>> > when I try to apt update my Ubuntu 16.04.7 LTS server, I get the error
 
>> > W: The repository 'http://apt.postgresql.org/pub/repos/apt xenial-pgdg Release' 
>> > does not have a Release file.
>> > W: Failed to fetch 
>> > http://apt.postgresql.org/pub/repos/apt/dists/xenial-pgdg/main/binary-amd64/Packages: 
>> > 404  Not Found [IP: 217.196.149.55 80]

 
>> > what can I do to fix this?
 
>> Install a release whose support was not dropped several years ago.

>Hi,

>please explain your claim a little bit more detailed?

>I'm still using 16.04 myself, since  end of standard support was less than 2
>years ago and EOL is in April 2026, see https://wiki.ubuntu.com/Releases . 

>What do I miss?

I cant remember how I got the code but once it was got

    sudo ua attach [the code for extended support]

To check status:

    sudo ua status

should show it all worked