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How To Upgrade Your Ubuntu VPS to 16.04 LTS

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We’ll show you, How To Upgrade Your Ubuntu VPS to 16.04 LTS. When an Ubuntu OS release reaches its ‘end of life’ it receives no further maintenance updates, including critical security upgrades, so it is highly recommended to upgrade to the latest Ubuntu version. In this tutorial, we will show you how to upgrade your Ubuntu VPS from Ubuntu 14.04 LTS (Trusty Tahr) to Ubuntu 16.04 LTS version (Xenial Xerus), skipping the non-LTS releases in-between.

Important

Please note, it is recommended to backup your data including the MySQL databases and service configuration files before you continue to upgrade your server OS, because there is a risk of failure, misconfiguration of your server services or some data loss during the upgrade process. It’s highly important that you backup all your data before you proceed with the upgrade.

Upgrade at your own risk, or leave it to professionals to do it.

Log in to your virtual server and check the current OS version:

#cat /etc/issue
Ubuntu 14.04.5 LTS \n \l

Make sure your Ubuntu OS packages are up-to-date:

sudo apt-get update
sudo apt-get upgrade
sudo apt-get dist-upgrade

Start the Ubuntu upgrade procedure

Install the update-manager-core package is if it is not installed on your server yet:

sudo apt-get install update-manager-core

Run:

sudo do-release-upgrade -d
...
Checking package manager
Reading package lists... Done
Building dependency tree
Reading state information... Done
Building data structures... Done

Calculating the changes

Calculating the changes

Do you want to start the upgrade?


9 installed packages are no longer supported by Canonical. You can
still get support from the community.

20 packages are going to be removed. 109 new packages are going to be
installed. 477 packages are going to be upgraded.

You have to download a total of 214 M. This download will take about
51 seconds with your connection.

Installing the upgrade can take several hours. Once the download has
finished, the process cannot be canceled.

 Continue [yN]  Details [d]

Enter ‘d’ to see more details on which packages are going to be removed and which new packages are going to be installed.

Enter ‘y’ to continue and to start the upgrade process.

During the upgrade process, you will be prompted to install new package maintainer’s configuration files or keep your current configuration files.

Enter ‘D’ to see the differences between the versions.

Enter ‘N’ to keep your current configuration file.

You may be prompted to restart some services on your server. Enter ‘yes’ to restart the specific service and continue the upgrade process.

Also, you will be prompted to remove obsolete packages, for example:

...
Searching for obsolete software
Reading package lists... Done
Building dependency tree
Reading state information... Done
Building data structures... Done
Building data structures... Done

Remove obsolete packages?


71 packages are going to be removed.

 Continue [yN]  Details [d]

Enter ‘d’ to check which packages are going to be removed.

Carefully go through the list and make sure you don’t need any of those packages. Enter ‘y’ to continue.

After the upgrade process is complete, you will be prompted to restart the server:

System upgrade is complete.

Restart required

To finish the upgrade, a restart is required.
If you select 'y' the system will be restarted.

Continue [yN]

Enter ‘y’ to restart the server.

Or, enter ‘N’, then restart your server using the command below:

shutdown -r now

Once the server is restarted, log in to the server and run the command below to check your Ubuntu version:

#cat /etc/issue
Ubuntu 16.04.2 LTS \n \l

That is it. Your server has been successfully upgraded to Ubuntu 16.04 (Xerial Xerus) LTS. The process is similar when upgrading any Ubuntu distro.

Of course you don’t have to do any of this if you use one of our Server Security Patches and Updates Services, in which case you can simply ask our expert Linux admins to upgrade the server OS for you. They are available 24×7 and will take care of your request immediately.

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