Right.  That was the problem with the sed command.  There's no ca.old-releases.ubuntu.com domain.  Just replace the whole thing with the three lines I gave you.

Then run: sudo apt-get update && sudo apt-get dist-upgrade

On 14-12-21 04:56 PM, Tim Tisdall wrote:
Take a look at https://help.ubuntu.com/community/EOLUpgrades/#Requirements .  Can you post your /etc/apt/sources.list file?

# deb cdrom:[Ubuntu 11.10 _Oneiric Ocelot_ - Release i386 (20111012)]/ oneiric main restricted
# deb cdrom:[Ubuntu 12.10 _Quantal Quetzal_ - Release i386 (20121017.2)]/ quantal main restricted

# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://ca.old-releases.ubuntu.com/ubuntu/ quantal main restricted
deb-src http://ca.old-releases.ubuntu.com/ubuntu/ quantal main restricted

## Major bug fix updates produced after the final release of the
## distribution.

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://ca.old-releases.ubuntu.com/ubuntu/ quantal universe
deb-src http://ca.old-releases.ubuntu.com/ubuntu/ quantal universe

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://ca.old-releases.ubuntu.com/ubuntu/ quantal multiverse
deb-src http://ca.old-releases.ubuntu.com/ubuntu/ quantal multiverse

## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://ca.old-releases.ubuntu.com/ubuntu/ quantal-backports main restricted universe multiverse
deb-src http://ca.old-releases.ubuntu.com/ubuntu/ quantal-backports main restricted universe multiverse

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

## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
# deb http://archive.canonical.com/ubuntu oneiric partner
# deb-src http://archive.canonical.com/ubuntu oneiric partner

## This software is not part of Ubuntu, but is offered by third-party
## developers who want to ship their latest software.
deb http://extras.ubuntu.com/ubuntu quantal main
deb-src http://extras.ubuntu.com/ubuntu quantal main

# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.

## Major bug fix updates produced after the final release of the
## distribution.

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.

## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.


## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
# deb http://archive.canonical.com/ubuntu quantal partner
# deb-src http://archive.canonical.com/ubuntu quantal partner

## This software is not part of Ubuntu, but is offered by third-party
## developers who want to ship their latest software.
deb http://old-releases.ubuntu.com/ubuntu utopic unicorn
deb-src http://old-releases.ubuntu.com/ubuntu utopic unicorn
deb http://archive.ubuntu.com/ubuntu utopic unicorn
deb-src http://archive.ubuntu.com/ubuntu utopic unicorn

<snip>


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