This article explains how to upgrade an Ubuntu 18.04 server to version 20.04 LTS. To avoid disconnecting your SSH session during the upgrade, perform this process as the root user from the Vultr Web Console. Before proceeding, please [make a backup of your server](https://docs.vultr.com/vultr-vps-snapshots). Then, **test the backup** by deploying a new instance from the backup, then verify that the test instance boots and has the correct data. If you do not make a backup before proceeding, you ......