dist-upgrade failed

[Артем Пастухов <artem.pastukhov@gmail.com>]

С недавнего времени перестали мои дебианы получать обновления.
Диагностика такая:

W: Failed to fetch
http://security.debian.org/dists/lenny/updates/main/binary-i386/Packages
 404 Not Found

W: Failed to fetch
http://www.backports.org/debian/dists/lenny-backports/main/binary-i386/Packages
 404 Not Found

W: Failed to fetch
http://www.backports.org/debian/dists/lenny-backports/contrib/binary-i386/Packages
 404 Not Found

W: Failed to fetch
http://security.debian.org/dists/lenny/updates/contrib/binary-i386/Packages
 404 Not Found

W: Failed to fetch
http://security.debian.org/dists/lenny/updates/non-free/binary-i386/Packages
 404 Not Found

W: Failed to fetch
http://www.backports.org/debian/dists/lenny-backports/non-free/binary-i386/Packages
 404 Not Found

W: Failed to fetch
http://ftp.debian.org/debian/dists/lenny/main/binary-i386/Packages
404 Not Found

W: Failed to fetch
http://ftp.debian.org/debian/dists/lenny/contrib/binary-i386/Packages
404 Not Found

W: Failed to fetch
http://ftp.debian.org/debian/dists/lenny/non-free/binary-i386/Packages
 404 Not Found

E: Some index files failed to download, they have been ignored, or old
ones used instead.

Я что-то упустил?