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How to upgrade to Ubuntu Linux 18.04

Ubuntu 18.04, aka the Bionic Beaver, and Canonical’s next long-term support version of its popular Linux distribution was out. That means it’s about time to consider how to upgrade to the latest and greatest Ubuntu Linux.

First, keep in mind that this Ubuntu will not look or feel like the last few versions. That’s because Ubuntu is moving back to GNOME for its default desktop from Unity. The difference isn’t that big, but if you’re already comfortable with what you’re running, you may want to wait a while before switching over.A. GUI or Desktop 

  1. Before starting, you should backup your existing Ubuntu desktop. There are many ways to backup Ubuntu. The complete system backups are Ubuntu’s default Déjà Dup and CloneZilla. Whichever method you use, you should also check the restore to make certain your backup is good.
  2. Open the “Software & Updates” setting in System Settings.
  3. Select the third tab, called “Updates.”
  4. Set the “Notify me of a new Ubuntu version” drop-down menu to “For any new version.”
  5. Press Alt+F2 and type in “update-manager -cd” (without the quotes) into the command box.
  6. Update Manager should open up and tell you: New distribution release ‘18.04’ is available.
    • If not, you can also use “/usr/lib/ubuntu-release-upgrader/check-new-release-gtk”.
  7. Click Upgrade and follow the on-screen instructions.

B. Shell

  1. $ sudo apt update
  2. $ sudo apt upgrade
  3. $ sudo apt dist-upgrade  (This handles changing software dependencies with new versions of packages.)
  4. $ sudo apt-get autoremove  (This removes dependencies from uninstalled applications.(
  5. $ sudo apt install update-manager-core  
  6. $ sudo do-release-upgrade (If there is the Final Release – This will start upgrading your system to 18.04. Along the way, Ubuntu will ask you several questions about how to handle the upgrade.)
  7. $ sudo do-release-upgrade -d (For installing Beta Release)