How to upgrade Ubuntu 20.04 to 22.04

To upgrade Ubuntu 20.04 to Ubuntu 22.04, follow these steps:

• Open the terminal: You can do this by pressing CTRL + ALT + T on your keyboard.
• Update your system: Run the following command to update your Ubuntu 20.04 system:

sudo apt update && sudo apt upgrade

This ensures your system is fully updated before starting the upgrade process.

• Install the update-manager-core package: Run the following command:

sudo apt install update-manager-core

• Open the release upgrade tool: Run the following command:

sudo do-release-upgrade -d

The -d flag allows upgrading to a development release. This is required if the target version is not yet officially released at the time of upgrading.

• Follow the prompts: The upgrade tool will guide you through the process. Confirm the upgrade and accept the license agreements to proceed.
• Wait for the upgrade to complete: This may take some time depending on your internet speed and system performance.
• Reboot your system: Once the upgrade is finished, run the following command:

sudo reboot

After rebooting, your system should now be running Ubuntu 22.04. To confirm, run:

lsb_release -a

This command will display your current Ubuntu version details.