In this Linux system administration tutorial you will learn how to update an Ubuntu Linux Server 16.04 LTS (Xenial Xerus) system with screenshots and instructions.To complete this tutorial you will require a running Ubuntu Linux Server 16.04 LTS system and an account with sudo administrative privileges.Each release receives bug fixes and security updates for about 18 months (or 3 years in the case of "Long Term Support" releases such as Linux Mint 13).The development team is also focused on the latest release. The first thing to do is to make a backup of your data. For instance, you may find out that a graphic card or a wireless adapter which currently works fine for you under Linux Mint, isn't recognized by the newer version of Linux Mint you're planning to upgrade to.Most commonly you will use the following command in the case of a security vulnerability, or perhaps just to verify that you’re running the most up-to-date kernel: is the package you’re updating!Assuming your server needed a new kernel and was thus upgraded, reboot your server to complete the process!A "Fresh" upgrade consists of the following steps: APT is the package management system used by Linux Mint.
Select the ones you want to exclude from your backup and click "Apply". If you backed up your data as an archive, choose "Archive", otherwise choose "Directory", then point the source to either your archive or the location where you made the backup of your data. You can ignore the advanced options since your home folder is empty at the moment.
Note: When the backup is finished (it shouldn't take long), go to the destination and check for a file which name starts with "software_selection". These settings are only there to optimize things for people running regular backups.
Review the information and press "Apply" when ready.
If anything happens and you break your operating system, it's not a problem, it can be reinstalled. To be safe: There are many different ways of upgrading to a newer release but we can categorize them in two different families: "fresh" and "package" upgrades.
In a "fresh" upgrade you use the live DVD of the new release to perform a new installation and to overwrite your existing partitions.
The system must have network connectivity and access to an Ubuntu update server.