I need to install pure-ftpd from source and need to do `apt-get source pure-ftpd` but I get this message:
`E: You must put some 'source' URIs in your sources.list`

I found some documentation about this for Debian on `<http://www.debian.org/doc/manuals/apt-howto/ch-basico.en.html#s-sources.list>` but what URIs should I add to sources.list for Ubuntu and if I want the source for pur-ftpd?

**EDIT:** I found some URIs on [Sources.List For Ubuntu Hardy Heron (8.04)](http://tuxicity.wordpress.com/sourceslist-for-ubuntu-hardy-heron-810/)
So I added these lines to my `/etc/apt/sources.list`:

```
deb-src http://archive.ubuntu.com/ubuntu/ hardy main restricted universe
deb-src http://archive.ubuntu.com/ubuntu/ hardy-updates main restricted
universe

```