Find Ubuntu version:
- In a terminal execute:lsb_release -dc
- The output will be something like this:Description: Ubuntu 9.10
Codename: karmic
Open file /etc/apt/sources.list with a text editor.
Delete all entries and substitute with the following:
deb http://old-releases.ubuntu.com/ubuntu/ CODENAME main universe restricted multiverse deb-src http://old-releases.ubuntu.com/ubuntu/ CODENAME main universe restricted multiverse deb http://old-releases.ubuntu.com/ubuntu/ CODENAME-security main universe restricted multiverse deb-src http://old-releases.ubuntu.com/ubuntu/ CODENAME-security main universe restricted multiverse deb http://old-releases.ubuntu.com/ubuntu/ CODENAME-updates main universe restricted multiverse deb-src http://old-releases.ubuntu.com/ubuntu/ CODENAME-updates main universe restricted multiverse
Extra Repository
Proposed:deb http://old-releases.ubuntu.com/ubuntu/ CODENAME-proposed main restricted universe multiverse
deb-src http://old-releases.ubuntu.com/ubuntu/ CODENAME-proposed main restricted universe multiverse
Replace the worh CODENAME with the codename found in point 2