Repositorios para apt

Hola este es un tutorial para ubuntu o debian.
Apt es un programa como el yum pero para ubuntu o debian, ahora a configurar los repositorios.
Abrimos la terminal, ponemos su y al dar enter nos saldra password y tenemos que poner la contraseña de usuario (aunque no se vean las letras las detecta), pulsamos enter.
Ahora ponemos cd /etc/apt/ y damos enter. Ahora ponemos gedit sources.list y nos saldrá para editar. Ahora yo recomiendo borrar todo y poner esto
## UBUNTU MAIN
deb http://us.archive.ubuntu.com/ubuntu/ edgy main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ edgy main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ edgy-proposed main restricted universe multiverse

## BUG FIX UPDATES
deb http://us.archive.ubuntu.com/ubuntu/ edgy-updates main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ edgy-updates main restricted universe multiverse

## UBUNTU SECURITY UPDATES
deb http://security.ubuntu.com/ubuntu edgy-security main restricted universe multiverse
deb-src http://security.ubuntu.com/ubuntu edgy-security main restricted universe multiverse

## BACKPORTS REPOSITORY
deb http://us.archive.ubuntu.com/ubuntu/ edgy-backports main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ edgy-backports main restricted universe multiverse

## CANONICAL COMMERCIAL REPOSITORY
deb http://archive.canonical.com/ubuntu edgy-commercial main

## SEVEAS’S REPOSITORY (Paquetes multimedia)
deb http://seveas.imbrandon.com/ edgy-seveas extras seveas-meta custom
deb-src http://seveas.imbrandon.com/ edgy-seveas extras seveas-meta custom

## GOOGLE PICASA
deb http://dl.google.com/linux/deb/ stable non-free

## SKYPE FOR LINUX
deb http://download.skype.com/linux/repos/debian/ stable non-free

## BERYL
deb http://ubuntu.beryl-project.org/ edgy main-edgy

## BLEEDING EDGE WINE PACKAGES
deb http://wine.budgetdedicated.com/apt edgy main
deb-src http://wine.budgetdedicated.com/apt edgy main

## LATEST AMAROK PACKAGES
deb http://kubuntu.org/packages/amarok-144 edgy main

## GiFT P2P NETWORK
deb http://apt.cerkinfo.be/ unstable main contrib
deb-src http://apt.cerkinfo.be/ unstable main contrib

## TREVINO’S REPOSITORY (Flash 9 Beta)
deb http://3v1n0.tuxfamily.org dapper 3v1n0
deb-src http://3v1n0.tuxfamily.org dapper 3v1n0