error while upgrading ubuntu 12:10

**pon2** · July 22nd, 2014

Hi friends.

i am new to ubuntu i am using 12.10, while i tried to $sudo apt-get update : i got error like 404:not found.

then i cleared that by editing the sourcefile.list. now my source file.list as follows:

#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://in.old-releases.ubuntu.com/ubuntu/ quantal main restricted
deb-src http://in.old-releases.ubuntu.com/ubuntu/ quantal main restricted

## Major bug fix updates produced after the final release of the
## distribution.
deb http://in.old-releases.ubuntu.com/ubuntu/ quantal-updates main restricted
deb-src http://in.old-releases.ubuntu.com/ubuntu/ quantal-updates main restricted

## 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://in.old-releases.ubuntu.com/ubuntu/ quantal universe
deb-src http://in.old-releases.ubuntu.com/ubuntu/ quantal universe
deb http://in.old-releases.ubuntu.com/ubuntu/ quantal-updates universe
deb-src http://in.old-releases.ubuntu.com/ubuntu/ quantal-updates 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://in.old-releases.ubuntu.com/ubuntu/ quantal multiverse
deb-src http://in.old-releases.ubuntu.com/ubuntu/ quantal multiverse
deb http://in.old-releases.ubuntu.com/ubuntu/ quantal-updates multiverse
deb-src http://in.old-releases.ubuntu.com/ubuntu/ quantal-updates 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://in.old-releases.ubuntu.com/ubuntu/ quantal-backports main restricted universe multiverse
deb-src http://in.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 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://extras.ubuntu.com/ubuntu quantal main
deb-src http://extras.ubuntu.com/ubuntu quantal main

****************

after this step , while updating 404:found has cleared. but now it is showing GPG error
E: GPG error: http://in.old-releases.ubuntu.com quantal Release: The following signatures were invalid: NODATA 1 NODATA 2

how to fix this bug,

Appropriate ideas would be Appreciated,...........

Thanks

**coffeecat** · July 22nd, 2014

It is not a bug. There is no in.old-releases.ubuntu.com subdomain, only old-releases.ubuntu.com . You have a mixture of the two. You should have only old-releases.ubuntu.com . See here:

https://help.ubuntu.com/community/EOLUpgrades

Even if you get that right, I'm not sure what will happen next. I believe an upgrade directly from 12.10 to 14.04 was possible, but you may be offered the upgrade from 12.10 to 13.04, which will get you stuck in an unsupported release upgrade path all the way from 12.10 to 14.04. 13.04 and 13.10 are now also end-of-life.

Since you are new to Ubuntu and since there is the possibility of a chain of three unsupported upgrades before you get to a currently supported version, I strongly advise you to re-install with the current LTS (long term support) 14.04.