install or upgrade from unsupported release in ubuntu

How to Install or Upgrade Software from Unsupported Release in Ubuntu

In every Linux distribution, software repositories for older releases are not supported. Same is the case with Ubuntu. The older releases are generally available at http://old-releases.ubuntu.com/. These older releases do not receive any updates and security patches. But sometimes you may need to install or upgrade software from unsupported release in Ubuntu. This is mainly in case you are using older versions of Ubuntu or software packages on your system. Here are the steps to install or upgrade software from unsupported release in Ubuntu.


How to Install or Upgrade Software from Unsupported Release in Ubuntu

Here are the steps to install or upgrade software from unsupported release in Ubuntu.


1. Add Unsupported Repository to Sources List

Open /etc/apt/sources.list in text editor.

$ sudo vi /etc/apt/sources.list

Change archive.ubuntu.com and security.ubuntu.com to old-releases.ubuntu.com.

You can also do this using sed command

$ sudo sed -i -re 's/([a-z]{2}\.)?archive.ubuntu.com|security.ubuntu.com/old-releases.ubuntu.com/g' /etc/apt/sources.list


2. Update System

Run the following command to update the system.

$ sudo apt-get update && sudo apt-get dist-upgrade


3. Upgrade to New Release

Once you have updated your system, upgrade the update manager and do do-release-upgrade.

$ sudo apt-get update
$ sudo apt-get install ubuntu-release-upgrader-core
$ sudo do-release-upgrade

In this article, we have learnt how to easily update software packages and upgrade system from unsupported repositories and releases.

Also read:

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How to Check if Directory Exists in Shell Script

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