За да не се виждат грешки като:
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/oneiric-security/main/source/Sources 404 Not Found
или
Err http://archive.ubuntu.com/ubuntu/ oneiric-updates/main ncurses-bin i386 5.9--1ubuntu5.1 403 Forbidden
се добавят нови хранилища
vim /etc/apt/sources.list
#Old repositories
#deb http://archive.ubuntu.com/ubuntu oneiric main restricted universe
#deb http://archive.ubuntu.com/ubuntu oneiric-updates main restricted universe
#deb http://security.ubuntu.com/ubuntu oneiric-security main restricted universe multiverse
#deb http://archive.canonical.com/ubuntu oneiric partner
#New repositories
deb http://old-releases.ubuntu.com/ubuntu/ oneiric main
deb http://old-releases.ubuntu.com/ubuntu/ oneiric-updates main
deb http://old-releases.ubuntu.com/ubuntu/ oneiric universe
deb http://old-releases.ubuntu.com/ubuntu/ oneiric-updates universe
deb http://old-releases.ubuntu.com/ubuntu oneiric-security main
deb http://old-releases.ubuntu.com/ubuntu oneiric-security universe