Introduction: Ubuntu 20.04 LTS (Long Term Support) brings new features, improvements, and enhanced security. Upgrading from Ubuntu 18.04 to 20.04 LTS is a seamless process that ensures your system remains up-to-date and benefits from the latest features. Here's how to perform the upgrade.
Important Note: Before proceeding, it's recommended to back up your important data and configurations to ensure you have a safe backup in case of any issues during the upgrade.
Steps:
-
Update Packages:
- Before upgrading, ensure your system is up-to-date by running:
sudo apt update sudo apt upgrade
- Before upgrading, ensure your system is up-to-date by running:
-
Install
update-manager-core
:- Install the
update-manager-core
package if it's not already installed:sudo apt install update-manager-core
- Install the
-
Start the Upgrade Process:
- Initiate the upgrade process by running:
sudo do-release-upgrade
- Initiate the upgrade process by running:
-
Follow On-Screen Instructions:
- The upgrade process will provide on-screen prompts and instructions. Read them carefully and follow the prompts to proceed with the upgrade.
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Package Configuration:
- During the upgrade, you might be asked about package configuration changes. Review the changes and select the appropriate option based on your preferences.
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Service Restart:
- As part of the upgrade, some services might need to be restarted. Allow the system to perform necessary restarts when prompted.
-
Cleanup and Reboot:
- After the upgrade completes, the system will prompt you to remove obsolete packages. To do this, run:
sudo apt autoremove
- Reboot the system to finalize the upgrade:
sudo reboot
- After the upgrade completes, the system will prompt you to remove obsolete packages. To do this, run:
-
Verification:
- After rebooting, verify that your system has been upgraded to Ubuntu 20.04 by running:
lsb_release -a
- After rebooting, verify that your system has been upgraded to Ubuntu 20.04 by running:
Conclusion: Congratulations, you've successfully upgraded your Ubuntu 18.04 system to Ubuntu 20.04 LTS. Your system is now running the latest LTS release, benefiting from new features, enhanced security, and improved performance.