Ubuntu apt-get unable to fetch packages

Ran into a similar issue.

This is linked to using a non LTS version of Ubuntu called an "End of life version". As those have discontinued support. You can check if your Ubuntu is at the end of life version on this link.

The simplest solution is to do the following two steps:

1. Backup your sources list sudo cp /etc/apt/sources.list /etc/apt/sources.list.backup

2. Open the sources file /etc/apt/sources.list and rename all the instances of us.archive or archive in

   http://us.archive.ubuntu.com/ubuntu/

   to

   http://old-releases.ubuntu.com/ubuntu/

   Also do the same for the http://security.ubuntu.com/ubuntu/dists/saucy-security/universe/binary-i386/Packages

3. Run sudo apt-get update after doing the above.

That should fix the issue.

Warning: Please update your ubuntu to an LTS version as soon as possible otherwise you won't be getting the latest security patches. This is definitely not a solution that you would deploy on production machines.

I tried using :

sudo do-release-upgrade

and then use :

sudo apt-get update

after that you will be able to install any packages.

If this did not worked for you try to change the network conf in apt.conf