Launch the upgrade tool with the command sudo do-release-upgrade on 19.10 use sudo do-release-upgrade -d if you are using 18.04 LTS. Make sure the Prompt line in /etc/update-manager/release-upgrades is set to 'normal' if you are using 19.10, or 'lts' if you are using 18.04 LTS. Install update-manager-core if it is not already installed.

Click Upgrade and follow the on-screen instructions.

Update Manager should open up and tell you that Ubuntu 20.04 LTS is now available.

Press Alt+F2 and type update-manager -c into the command box if you are using 19.10 type update-manager -c -d if you are using 18.04 LTS.

Set the 'Notify me of a new Ubuntu version' drop down menu to 'For any new version' if you are using 19.10 set it to 'For long-term support versions' if you are using 18.04 LTS.

Open the 'Software & Updates' Setting in System Settings.

Confirm that you also have a network connectivity to one of the official mirrors or to a locally accessible mirror as there are no offline upgrade options.

Ensure that you have all updates installed for your current version of Ubuntu before you upgrade.

You can upgrade to Ubuntu 20.04 LTS from either Ubuntu 18.04 LTS or Ubuntu 19.10.

(Less Frequently Downloaded Ubuntu Images) You can download ISOs and flashable images from: Images can be downloaded from a location near you. Additional security support is available with ESM (Extended Security Maintenance).įind the links to release notes for official flavors here. All the remaining flavours will be supported for 3 years.

Maintenance updates will be provided for 5 years until April 2025 for Ubuntu Desktop, Ubuntu Server, Ubuntu Cloud, and Ubuntu Core. For details of the changes applied since 20.04, please see the 20.04.5 change summary. These release notes for Ubuntu 20.04 LTS (Focal Fossa) provide an overview of the release and document the known issues with Ubuntu 20.04 LTS and its flavors.

Other base system changes since 18.04 LTS.

Upgrading from Ubuntu 18.04 LTS or 19.10.

Master pdf editor for ubuntu 20.04