Update Ubuntu 18.04 to 20.04

Procedure to upgrade Ubuntu 18.04 to 20.04

1. Create a backup of your server or vm.
2. Upgrade all installed packages of Ubuntu version 18.04 by running command:
   

   $ sudo apt update && sudo apt upgrade

3. Reboot the Ubuntu Linux system by tying the following command:
   

   $ sudo reboot

4. Install the Ubuntu update tool, run:
   

   $ sudo apt install update-manager-core

5. Start the upgrade procedure, run:
   

   $ sudo do-release-upgrade

6. Reboot the box, run:
   

   $ sudo reboot

7. Verify upgrades

Let us see all commands and examples details to upgrade Ubuntu from 18.04 to 20.04 LTS using the CLI.

NOTE: You can upgrade to Ubuntu 20.04 LTS from either Ubuntu 18.04 LTS or Ubuntu 19.10 only