How to upgrade Ubuntu 16.04 and 17.10 to 18.04 LTS
With the great news from Canonical where they stated that they have extended LTS support for Ubuntu 18.04 to 10 years, it is not a bad idea to upgrade Ubuntu to version 18.04. In this post we will cover the process how to upgrade Ubuntu to version 18.04 LTS. Before doing anything, first please backup everything, backup all the data you have.
There are no special requirements here, if you have Ubuntu 16.04 or 17.10 version installed, you only need free time and free space on the HDD.
Also here’s a video tutorial as well:
Preparing OS for the upgrade
What we first need to do is to update our packages. So, we need to start the terminal(ctrl-alt-t key combination) and run these two commands:
sudo apt update sudo apt upgrade
When the update is finished, next command we to run is:
sudo apt dist upgrade
Now we can clear the cache and remove all the unnecessary packages. For that we need the command:
sudo apt autoremove
Running the upgrade
Now we’re ready to start the upgrade process. First we need to update the update manager. Run the following command in the terminal:
sudo apt install update-manager
And now the upgrade process will start. Run the two commands:
sudo do-release-upgrade -d
Upgrade process can take while. It can take up to an hour to finish(that depends on your PC and HDD you have). That’s why it’s important to have a backup of your files. Let’s take a worst case scenario that can happen during the upgrade - power loss. If you lose power, you lose all your data. Again, backup, backup and backup.
After some time you’ll start to notice changes on your Ubuntu during the upgrade process. Example:
Ubuntu 16.04 during the upgrade.
This is Ubuntu after 30 minutes of upgrade process.
Once the upgrade is finished, terminal will prompt you to let you know that the upgrade is completed and it will prompt you to restart the PC, which is necessary in order for the upgrade to be applied. Enter Y on terminal and hit Enter. The Ubuntu will restart by itself and boot again. Then you can enjoy your Ubuntu with 10 years of support.