В качестве дополнительной текущей информации приведу пример наполнения "sources.list", файла с типовым списком репозиториев для разных операционных систем.
Особо хочу обратить внимание на то, что все загрузки заказываются с сайтов "US", предположительно у первоисточника. Как у нас, в соответствующих органах, любят муссировать тему развития собственного (национального) системного и прикладного программного обеспечения, из соображений "безопасности", понимаете-ли; так и я не доверяю этим самым органам (отечественным, так сказать) и предпочитаю получить ПО предположительно только с одним набором "закладок", "американским", нежели дополненное произведениями местного разлива. В общем, ценю старания "яндекса" и алматинских фирм, создающих зеркала "репозиториев" на своих площадках, но, пока есть такая возможность, буду тянуть обновления из "США".
Linux Debian Lenny:
# Base
deb http://ftp.us.debian.org/debian/ lenny main contrib non-free
deb-src http://ftp.us.debian.org/debian/ lenny main contrib non-free
# Updates
deb http://security.debian.org/ lenny/updates main contrib
deb-src http://security.debian.org/ lenny/updates main contrib
deb http://volatile.debian.org/debian-volatile/ lenny/volatile main contrib non-free
deb-src http://volatile.debian.org/debian-volatile/ lenny/volatile main contrib non-free
# Обновления, находящиеся в процессе тестирования, перед перемещением в общедоступный "lenny/updates" (использовать при остром желании установить какое-то обновление здесь и сейчас, немедленно)
# deb http://ftp.us.debian.org/debian/ lenny-proposed-updates main contrib non-free
# deb-src http://ftp.us.debian.org/debian/ lenny-proposed-updates main contrib non-free
# Свежачок из нестабильного "релиза", на свой страх и риск
# deb http://backports.debian.org/debian-backports/ lenny-backports main contrib non-free
# deb-src http://backports.debian.org/debian-backports/ lenny-backports main contrib non-free
# Кодеки и мультимдийное ПО
deb http://www.deb-multimedia.org/ lenny main non-free
deb-src http://www.deb-multimedia.org/ lenny main non-free
deb http://ftp.us.debian.org/debian/ lenny main contrib non-free
deb-src http://ftp.us.debian.org/debian/ lenny main contrib non-free
# Updates
deb http://security.debian.org/ lenny/updates main contrib
deb-src http://security.debian.org/ lenny/updates main contrib
deb http://volatile.debian.org/debian-volatile/ lenny/volatile main contrib non-free
deb-src http://volatile.debian.org/debian-volatile/ lenny/volatile main contrib non-free
# Обновления, находящиеся в процессе тестирования, перед перемещением в общедоступный "lenny/updates" (использовать при остром желании установить какое-то обновление здесь и сейчас, немедленно)
# deb http://ftp.us.debian.org/debian/ lenny-proposed-updates main contrib non-free
# deb-src http://ftp.us.debian.org/debian/ lenny-proposed-updates main contrib non-free
# Свежачок из нестабильного "релиза", на свой страх и риск
# deb http://backports.debian.org/debian-backports/ lenny-backports main contrib non-free
# deb-src http://backports.debian.org/debian-backports/ lenny-backports main contrib non-free
# Кодеки и мультимдийное ПО
deb http://www.deb-multimedia.org/ lenny main non-free
deb-src http://www.deb-multimedia.org/ lenny main non-free
Linux Debian Squeeze:
# Base
deb http://ftp.us.debian.org/debian/ squeeze main contrib non-free
deb-src http://ftp.us.debian.org/debian/ squeeze main contrib non-free
# Updates
deb http://security.debian.org/ squeeze/updates main contrib
deb-src http://security.debian.org/ squeeze/updates main contrib
# Официальная замена для Volatile
deb http://ftp.us.debian.org/debian squeeze-updates main contrib non-free
# Обновления, находящиеся в процессе тестирования, перед перемещением в общедоступный "squeeze/updates" (использовать при остром желании установить какое-то обновление здесь и сейчас, немедленно)
# deb http://ftp.us.debian.org/debian/ squeeze-proposed-updates main contrib non-free
# deb-src http://ftp.us.debian.org/debian/ squeeze-proposed-updates main contrib non-free
# Свежачок из нестабильного "релиза", на свой страх и риск
# deb http://backports.debian.org/debian-backports/ squeeze-backports main contrib non-free
# deb-src http://backports.debian.org/debian-backports/ squeeze-backports main contrib non-free
# Кодеки и мультимдийное ПО
deb http://www.deb-multimedia.org/ squeeze main non-free
deb-src http://www.deb-multimedia.org/ squeeze main non-free
deb http://ftp.us.debian.org/debian/ squeeze main contrib non-free
deb-src http://ftp.us.debian.org/debian/ squeeze main contrib non-free
# Updates
deb http://security.debian.org/ squeeze/updates main contrib
deb-src http://security.debian.org/ squeeze/updates main contrib
# Официальная замена для Volatile
deb http://ftp.us.debian.org/debian squeeze-updates main contrib non-free
# Обновления, находящиеся в процессе тестирования, перед перемещением в общедоступный "squeeze/updates" (использовать при остром желании установить какое-то обновление здесь и сейчас, немедленно)
# deb http://ftp.us.debian.org/debian/ squeeze-proposed-updates main contrib non-free
# deb-src http://ftp.us.debian.org/debian/ squeeze-proposed-updates main contrib non-free
# Свежачок из нестабильного "релиза", на свой страх и риск
# deb http://backports.debian.org/debian-backports/ squeeze-backports main contrib non-free
# deb-src http://backports.debian.org/debian-backports/ squeeze-backports main contrib non-free
# Кодеки и мультимдийное ПО
deb http://www.deb-multimedia.org/ squeeze main non-free
deb-src http://www.deb-multimedia.org/ squeeze main non-free
Linux Debian Wheezy:
# Base
deb http://ftp.us.debian.org/debian/ wheezy main contrib non-free
deb-src http://ftp.us.debian.org/debian/ wheezy main contrib non-free
# Security updates
deb http://security.debian.org/ wheezy/updates main contrib non-free
deb-src http://security.debian.org/ wheezy/updates main contrib non-free
# Обновления, ранее известные как "Volatile"
deb http://ftp.debian.org/debian/ wheezy-updates main
deb-src http://ftp.debian.org/debian/ wheezy-updates main
# Кодеки и мультимдийное ПО
deb http://www.deb-multimedia.org/ wheezy main non-free
deb-src http://www.deb-multimedia.org/ wheezy main non-free
deb http://ftp.us.debian.org/debian/ wheezy main contrib non-free
deb-src http://ftp.us.debian.org/debian/ wheezy main contrib non-free
# Security updates
deb http://security.debian.org/ wheezy/updates main contrib non-free
deb-src http://security.debian.org/ wheezy/updates main contrib non-free
# Обновления, ранее известные как "Volatile"
deb http://ftp.debian.org/debian/ wheezy-updates main
deb-src http://ftp.debian.org/debian/ wheezy-updates main
# Кодеки и мультимдийное ПО
deb http://www.deb-multimedia.org/ wheezy main non-free
deb-src http://www.deb-multimedia.org/ wheezy main non-free
Ubuntu Linux Lucid (поддержка до Апреля 2013 года):
# Base
deb http://us.archive.ubuntu.com/ubuntu/ lucid main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ lucid main restricted universe multiverse
# Updates
deb http://us.archive.ubuntu.com/ubuntu/ lucid-security main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ lucid-updates main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ lucid-proposed main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ lucid-backports main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ lucid-security main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ lucid-updates main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ lucid-proposed main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ lucid-backports main restricted universe multiverse
# Partners
deb http://archive.canonical.com/ubuntu lucid partner
deb-src http://archive.canonical.com/ubuntu lucid partner
deb http://us.archive.ubuntu.com/ubuntu/ lucid main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ lucid main restricted universe multiverse
# Updates
deb http://us.archive.ubuntu.com/ubuntu/ lucid-security main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ lucid-updates main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ lucid-proposed main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ lucid-backports main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ lucid-security main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ lucid-updates main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ lucid-proposed main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ lucid-backports main restricted universe multiverse
# Partners
deb http://archive.canonical.com/ubuntu lucid partner
deb-src http://archive.canonical.com/ubuntu lucid partner
Ubuntu Linux Maverick (поддержка до Апреля 2012 года):
# Base
deb http://us.archive.ubuntu.com/ubuntu/ maverick main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ maverick main restricted universe multiverse
# Updates
deb http://us.archive.ubuntu.com/ubuntu/ maverick-security main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ maverick-updates main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ maverick-proposed main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ maverick-backports main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ maverick-security main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ maverick-updates main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ maverick-proposed main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ maverick-backports main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ maverick main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ maverick main restricted universe multiverse
# Updates
deb http://us.archive.ubuntu.com/ubuntu/ maverick-security main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ maverick-updates main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ maverick-proposed main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ maverick-backports main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ maverick-security main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ maverick-updates main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ maverick-proposed main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ maverick-backports main restricted universe multiverse
Ubuntu Linux Natty (поддержка до Октября 2012 года):
# Base
deb http://us.archive.ubuntu.com/ubuntu/ natty main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ natty main restricted universe multiverse
# Updates
deb http://us.archive.ubuntu.com/ubuntu/ natty-security main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ natty-updates main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ natty-proposed main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ natty-backports main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ natty-security main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ natty-updates main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ natty-proposed main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ natty-backports main restricted universe multiverse
# Partners
deb http://archive.canonical.com/ubuntu natty partner
deb-src http://archive.canonical.com/ubuntu natty partner
# Extras
deb http://extras.ubuntu.com/ubuntu natty main
deb-src http://extras.ubuntu.com/ubuntu natty main
deb http://us.archive.ubuntu.com/ubuntu/ natty main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ natty main restricted universe multiverse
# Updates
deb http://us.archive.ubuntu.com/ubuntu/ natty-security main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ natty-updates main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ natty-proposed main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ natty-backports main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ natty-security main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ natty-updates main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ natty-proposed main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ natty-backports main restricted universe multiverse
# Partners
deb http://archive.canonical.com/ubuntu natty partner
deb-src http://archive.canonical.com/ubuntu natty partner
# Extras
deb http://extras.ubuntu.com/ubuntu natty main
deb-src http://extras.ubuntu.com/ubuntu natty main
Ubuntu Linux Oneiric (поддержка до Апреля 2013 года):
# Base
deb http://us.archive.ubuntu.com/ubuntu/ oneiric main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ oneiric main restricted universe multiverse
# Updates
deb http://us.archive.ubuntu.com/ubuntu/ oneiric-security main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ oneiric-updates main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ oneiric-proposed main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ oneiric-backports main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ oneiric-security main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ oneiric-updates main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ oneiric-proposed main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ oneiric-backports main restricted universe multiverse
# Partners
deb http://archive.canonical.com/ubuntu oneiric partner
deb-src http://archive.canonical.com/ubuntu oneiric partner
# Extras
deb http://extras.ubuntu.com/ubuntu oneiric main
deb-src http://extras.ubuntu.com/ubuntu oneiric main
deb http://us.archive.ubuntu.com/ubuntu/ oneiric main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ oneiric main restricted universe multiverse
# Updates
deb http://us.archive.ubuntu.com/ubuntu/ oneiric-security main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ oneiric-updates main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ oneiric-proposed main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ oneiric-backports main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ oneiric-security main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ oneiric-updates main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ oneiric-proposed main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ oneiric-backports main restricted universe multiverse
# Partners
deb http://archive.canonical.com/ubuntu oneiric partner
deb-src http://archive.canonical.com/ubuntu oneiric partner
# Extras
deb http://extras.ubuntu.com/ubuntu oneiric main
deb-src http://extras.ubuntu.com/ubuntu oneiric main
Ubuntu Linux Precise (нестабильная ветка, в разработке):
# Base
deb http://us.archive.ubuntu.com/ubuntu/ precise main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ precise main restricted universe multiverse
# Updates
deb http://us.archive.ubuntu.com/ubuntu/ precise-security main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ precise-updates main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ precise-proposed main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ precise-backports main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ precise-security main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ precise-updates main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ precise-proposed main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ precise-backports main restricted universe multiverse
# Partners
deb http://archive.canonical.com/ubuntu precise partner
deb-src http://archive.canonical.com/ubuntu precise partner
# Extras
deb http://extras.ubuntu.com/ubuntu precise main
deb-src http://extras.ubuntu.com/ubuntu precise main
deb http://us.archive.ubuntu.com/ubuntu/ precise main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ precise main restricted universe multiverse
# Updates
deb http://us.archive.ubuntu.com/ubuntu/ precise-security main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ precise-updates main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ precise-proposed main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ precise-backports main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ precise-security main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ precise-updates main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ precise-proposed main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ precise-backports main restricted universe multiverse
# Partners
deb http://archive.canonical.com/ubuntu precise partner
deb-src http://archive.canonical.com/ubuntu precise partner
# Extras
deb http://extras.ubuntu.com/ubuntu precise main
deb-src http://extras.ubuntu.com/ubuntu precise main