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How To Upgrade Ubuntu To Ubuntu 18.04 LTS


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The latest Ubuntu release, 18.04, marks an opportunity for both LTS users and people on the previous 17.10 release to update Ubuntu and take advantage of the latest features. Thanks to Debian's upgrade process, it should be relatively simple to either upgrade Ubuntu 16.04 to 18.04 (both LTS) or to upgrade Ubuntu 17.10 to 18.04 LTS Bionic Beaver. see What's new in Ubuntu 18.04 LTS.

Screenshot from 2018-05-09 22-58-23.pngubuntu-default.png

Update Your Ubuntu
Before you do anything, make sure that your system is already up-to-date and is connected to internet. Run a full Ubuntu update and upgrade with Apt. If you're not sure about which version of Ubuntu you're currently using then you can check with the command lsb_release -a via Terminal.
sudo apt-get update
sudo apt-get upgrade
sudo apt-get dist-upgrade

This will help to ensure that the difference between packages is as small as possible. It also will be the way that Canonical has most likely tested the upgrade themselves, so it's least likely to encounter bugs. Lastly, before you begin to upgrade Ubuntu to 18.04 LTS you may also want to remove all no longer required packages using:
sudo apt-get autoremove

Upgrading Process
Ubuntu is user-friendly Linux distribution so the upgrading isn't complex you can just check for updates and upgrade directly from Software & Updates but in this tutorial will will do the command line via Terminal. Let's start open Terminal and paste the following line into Terminal and it will take some time depending upon your Internet connection.
sudo apt install update-manager-core && sudo do-release-upgrade
Note : If you get error message like "No new release found" then follow the below command at your own risk to upgrade!!

sudo do-release-upgrade -d

Screenshot from 2018-05-10 00-17-44.png

After update is complete you will get the above message, asking you about remove the obsolete packages? obviously yes, remove all garbage by just pressing 'y' and enter, this will take about 5 minutes then once completed you'll get the following dialog and click "Restart Now" to complete setup!!


Finally, you will get the after completing everything restart your machine and make the machine clean, fresh and up-to-date with following commands:
sudo apt-get clean
sudo apt-get update && sudo apt-get upgrade
sudo apt-get dist-upgrade
sudo apt-get autoremove

Some screenshot from 18.04
Screenshot from 2018-05-10 00-31-48.pngScreenshot from 2018-05-10 00-34-39.pngScreenshot from 2018-05-10 00-35-21.pngScreenshot from 2018-05-10 00-35-21.pngScreenshot from 2018-05-10 00-36-42.pngubuntu.png


Yes, you can also use unity if you don't like new gnome desktop. From the login screen click on gear icon and choose between environment(Picture attached above).
Enjoy and play around with new Ubuntu 18.04 LTS (y)(y)