• Home
  • Ubuntu 18.04
    • Whats New?
    • Upgrade Ubuntu
    • Install Java
    • Install Node.js
    • Install Docker
    • Install Git
    • Install LAMP Stack
  • Tutorials
    • AWS
    • Shell Scripting
    • Docker
    • Git
    • MongoDB
  • Funny Tools
  • FeedBack
  • Submit Article
  • About Us
TecAdmin
Menu
  • Home
  • Ubuntu 18.04
    • Whats New?
    • Upgrade Ubuntu
    • Install Java
    • Install Node.js
    • Install Docker
    • Install Git
    • Install LAMP Stack
  • Tutorials
    • AWS
    • Shell Scripting
    • Docker
    • Git
    • MongoDB
  • Funny Tools
  • FeedBack
  • Submit Article
  • About Us

How to Upgrade Ubuntu 12.04 LTS to Ubuntu 14.04 LTS

Written by Rahul, Updated on April 22, 2014

Ubuntu 14.04 LTS (Trusty Tahr) is has been released publicly on April 17, 2014. Ubuntu provides and release upgrader by which we can easily upgrade our system to latest available release. This article will help you to upgrade Ubuntu 12.04 LTS to Ubuntu 14.04 LTS. Read more about Ubuntu 14.04 LTS.

Note: Before starting release upgrade on Ubuntu, We recommend to take backup of impotent data to other remote system or backup drive. We do not grantees that below steps will work for you properly. The commands use in this article has been taken from here.

To download Ubuntu 12.04 Trusty Tahr ISO images, Visit to http://releases.ubuntu.com/trusty/

Step 1: Install Ubuntu Core Update Mamanger

Generally update-manager-core was installed on system by default, but in case you do not have it, You can install it using following commands.

$ sudo apt-get update
$ sudo apt-get install update-manager-core

Step 2: Check Current Version and Available Upgrade

To check your current running version use lsb_release command.

$ lsb_release -a

LSB Version:    core-2.0-ia32:core-2.0-noarch:core-3.0-ia32:core-3.0-noarch:.....
Distributor ID: Ubuntu
Description:    Ubuntu 12.04 LTS
Release:    12.04
Codename:   precise

Now check for new Ubuntu release available to update

$ sudo do-release-upgrade --check-dist-upgrade-only --devel-release

Checking for a new Ubuntu release
New release '14.04' available.
Run 'do-release-upgrade' to upgrade to it.

The above output showing that newer release 14.04 is available to upgrade

Step 3: Upgrade to Ubuntu 14.04 LTS

Lets execute following command to upgrade ubuntu release to Ubuntu 14.04 LTS (Trusty Tahr).

$ sudo do-release-upgrade --devel-release

The above command will take long time to execute depends on your system configuration and internet speed. This will also ask for confirmation to proceed. Using –devel-release will upgrade to development (Unstable) release

Reference:

Share it!
Share on Facebook
Share on Twitter
Share on LinkedIn
Share on Reddit
Share on Tumblr
Share on Whatsapp
Rahul
Rahul
Connect on Facebook Connect on Twitter

I, Rahul Kumar am the founder and chief editor of TecAdmin.net. I am a Red Hat Certified Engineer (RHCE) and working as an IT professional since 2009..

Leave a Reply Cancel reply

Popular Posts

  • How to Install Python 3.9 on CentOS/RHEL 7 & Fedora 32/31 0
  • How To Install VNC Server on Ubuntu 20.04 1
  • How To Install NVM on macOS with Homebrew 0
  • (Solved) apt-add-repository command not found – Ubuntu & Debian 0
  • How to Install .NET Core on Debian 10 0
© 2013-2020 Tecadmin.net. All Rights Reserved | Terms  | Privacy Policy