Ubuntu tutorials

It's always a good idea to backup a configuration file like sources.list before you edit it



To add some Ubuntu repositories, you need to edit sources.list:



Typically, the sources.list file looks like this:



Now insert at the end of the file those servers:



then update repositories list with:



Short explanation of the repository format:

- deb: These repositories contain binaries or precompiled packages. These repositories are required for most users.
- deb-src: These repositories contain the source code of the packages. Useful for developers.
- http://archive.ubuntu.com/ubuntu: The URI (Uniform Resource Identifier), in this case a location on the internet. See the official mirror list or the self-maintained mirror list to find other mirrors.
- hardy is the release name or version of your distribution.
- main & restricted are the section names or components. There can be several section names, separated by spaces.

Resources: Community Ubuntu Documentation, Debian Admin