Ubuntu 10 repositories help

Question

Looks like not all the files on my repositories any more as you see below.

Failed to fetch http://update.onlinehome-server.info/ubuntu/pool/main/libs/libsndfile/libsndfile1_1.0.21-2ubuntu0.10.04.1_amd64.deb  404  Not Found
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

Just wondering whats the best ones to add that are safe and will not break my web server? I'm guessing I add them to bottom of the sources.list

Cheers

would it be fine to add to get it to work?

###### Ubuntu Main Repos
deb http://uk.archive.ubuntu.com/ubuntu/ lucid main restricted 
deb-src http://uk.archive.ubuntu.com/ubuntu/ lucid main restricted 

###### Ubuntu Update Repos
deb http://uk.archive.ubuntu.com/ubuntu/ lucid-security main restricted 
deb http://uk.archive.ubuntu.com/ubuntu/ lucid-updates main restricted 
deb-src http://uk.archive.ubuntu.com/ubuntu/ lucid-security main restricted 
deb-src http://uk.archive.ubuntu.com/ubuntu/ lucid-updates main restricted 

Answer 1

Typically, if individual packages are giving 404s, your Packages lists are out of date and you need to run apt-get update to refresh them.

If that isn't the case, then the repo you're using has probably gone away or is otherwise badly mismanaged. In general, I only have two sorts of repos in my sources.list:

• The ones for the distribution and release I'm using (regular and security updates); and
• A local repo containing rebuilds and backports of packages for which I'm running updated or locally-modified versions, which I've built myself.

Random repositories create far too much risk to be a professionally prudent option.