Output from apt update Question

[Colin Watson]

On Fri, Oct 01, 2021 at 07:54:29PM -0500, Jay Ridgley wrote:
> On 10/1/21 3:14 PM, Colin Watson wrote:
> > On Fri, Oct 01, 2021 at 03:03:18PM -0500, Jay Ridgley wrote:
> > > E: The repository 'http://ppa.launchpad.net/hplip-isv/ppa/ubuntu focal
> > > Release' does not have a Release file.
> > 
> > That PPA hasn't had any activity since Ubuntu 11.04.  It is almost
> > certainly useless to you, and you should delete it (it's probably
> > somewhere under /etc/apt/sources.list.d/).
> 
> I think it was added as part of my update to focal Snaptic shows it as shown
> above append with: main and there also is an entry just like it appended
> with; main (Source Code).

It must have been added a long time before that, and only had some
previous release name substituted with focal during the upgrade.

It also must have been failing for years, across multiple upgrades
(unless you upgraded directly from natty or earlier to focal without
going through releases in between, which is very much unsupported and
would probably have required expert intervention).

> Are you sure that I can delete it?

Certain.  Look at
https://launchpad.net/~hplip-isv/+archive/ubuntu/ppa/+packages and it's
clear - this stuff is all very old and long since superseded by newer
versions in the official distribution.

-- 
Colin Watson (he/him)                              [cjwatson at ubuntu.com]