can't update with aptitude

name at domain wrote:
> I am currently using Trisquel 7. Whenever I try to do an =apt update= I am
> getting this error:
>
> W: Failed to fetch
> https://download.docker.com/linux/ubuntu/dists/belenos/stable/binary-amd64/Packages
>  HttpError404

That URL is currently returning a 404 error (this resource is not found on
the server). Hence you're told:

> E: Some index files failed to download. They have been ignored, or old ones
> used instead.

name at domain wrote:
> Does anyone know what would cause this error?

I think you need to contact the administrators of download.docker.com to
learn why you're getting this error. It would be good for you to know if
you have the correct URL or if this is a temporary service outage.

But you have options.

- Wait and see if the following command:

wget --spider --server-response
'https://download.docker.com/linux/ubuntu/dists/belenos/stable/binary-amd64/Packages'

returns something other than a 404 error. If and when that happens, try
updating again.

- Perhaps there is a mirror of this repository somewhere else you could use
instead of the copy at download.docker.com? If so, consider substituting
that mirror for the mirror at download.docker.com.

- Do you really need that repository at all to do the updating? Consider
commenting out that repository (which is the same as removing that
repository but making it easy to restore that repository if needed) and see
if the rest of the update proceeds as needed.

Thanks J.B. Nicholson-Owens,

I will give your suggestion a try. I don't need that docker, I actually thought I had deleted docker, but it still keeps trying to fetch that for some reason. I didn't know you could edit that, so it's nice to learn something new.

I have commented that out from /etc/apt/sources.list

So now I'll try to upgrade to Trisquel 8 and see if it works!