Quote Originally Posted by ssam View Post
Code:
## the main repos
deb http://gb.archive.ubuntu.com/ubuntu/ feisty main restricted universe multiverse
deb-src http://gb.archive.ubuntu.com/ubuntu/ feisty main restricted universe multiverse

## Major bug fix updates produced after the final release of the
## distribution.
deb http://gb.archive.ubuntu.com/ubuntu/ feisty-updates main restricted
deb-src http://gb.archive.ubuntu.com/ubuntu/ dapper-updates main restricted

## security
deb http://security.ubuntu.com/ubuntu feisty-security main restricted universe
deb-src http://security.ubuntu.com/ubuntu dapper-security main restricted universe

#backports
deb http://gb.archive.ubuntu.com/ubuntu/ feisty-backports main restricted universe multiverse
Beware of the typo: some of the sources repositories are pointing to dapper instead feisty