Archive repository for Ubuntu 12.10 [duplicate]
Solution 1:
Although the Files for quantal are not listed, the files have actually been moved and can be found here:
http://old-releases.ubuntu.com/ubuntu/dists/quantal
edit /etc/apt/sources.list
and change 'archive.ubuntu.com' to 'old-releases.ubuntu.com'
You can do this with sed
sudo sed -i -e 's/archive.ubuntu.com/old-releases.ubuntu.com/g' /etc/apt/sources.list
then update with
sudo apt-get update && sudo apt-get dist-upgrade
Attention: you should only use the old-release archive if you have no possibility to upgrade to a newer version, because you won't get any security updates using these old archives