Prerequisites
This tutorial assumes that you have a running Ubuntu 16.10 system. Also, assumes you have shell access of system with sudo privileges.
Step 1. Perform Backups
We strongly recommended to backup all your important data from your Desktop to a remote location. Also preferred to take a complete system snapshot if possible.
Step 2. Upgrade to Ubuntu 17.04
Before upgrading to Zesty Zapus, upgrade your current release packages to latest. Use the following commands to perform current packages update. Now install update-manager-core package on your system. This packages set the default behavior for the release upgrader. Edit the /etc/update-manager/release-upgrades file and make sure that Prompt value is set to normal. Finally, Run do-release-upgrade command to upgrade to Ubuntu 17.04 (Zesty Zapus). We are using -d to upgrade to the current available development branch. Because stable branch is not available during writing this tutorial. You can simply remove -d parameter from command to upgrade to stable branch.
