Hi everyone,
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
E: Some index files failed to download. They have been ignored, or old ones
used instead.
```
I'm a novice at administrating a GNU/Linux system. It might help if I mention
that I might have accidentally updated "Trisquel base" through the default
updater which pops up, and this problem seems to have started after that. I
have tried changing the server which the updates are downloaded from, but it
didn't seem to help.
Does anyone know what would cause this error? Ultimately I'd like to update
this laptop from Trisquel 7 to 8, and booting from a USB doesn't work for
that purpose either. It is a Libiquity Taurinus X200, if that is relevant.
Thanks for any insight you can offer.
