Upgrade 12.10 sources.list [closed]

Solution 1:

For upgrading, you only need to have these lines in your sources.list:

deb http://old-releases.ubuntu.com/ubuntu/ quantal main restricted universe multiverse
deb http://old-releases.ubuntu.com/ubuntu/ quantal-security main restricted universe multiverse
deb http://old-releases.ubuntu.com/ubuntu/ quantal-updates main restricted universe multiverse

Everything else, including the Canonical repository and the Extras repository can be (and will be, by the upgrade tool) disabled.

In the future, keep sources that you added in individual .list files in the /etc/apt/sources.list.d/ directory.