Hello, friends. In this post, you will learn how to upgrade to Ubuntu 21.04 using the terminal with a series of simple steps.
Ubuntu 21.04 is already with us and it is possible to install it from a fresh install but this process although simple may inconvenience users who already have Ubuntu installed. So the upgrade process looks like a good choice.
So let’s get started.
Upgrading to Ubuntu 21.04
Before starting any upgrade process, you must back up all the data you have. Although the process is safe, it’s never too much to do for your own good.
Next, you need to emphasize the stability of your system. If you have a stable system where everything is running smoothly, you may want to think twice before upgrading. If you don’t, then you can start it…
First, open a terminal or connect to your server via SSH.
After that, make sure that the system is fully up to date including all critical and non-critical patches.
sudo apt update sudo apt upgrade sudo apt dist-upgrade
It is also advisable to uninstall all unneeded packages from the system. To do this, run
sudo apt autoremove
Now with the packages prepared and the system ready, we can configure APT to perform the upgrade.
To do this, edit the release-upgrades file and modify the prompt parameter.
sudo nano /etc/update-manager/release-upgrades
In the file, you will notice that there are different settings for which version to upgrade to. As Ubuntu 21.04 is not an LTS distribution, then the value of prompt has to be normal.
Prompt=normal
Save the changes and close the text editor. In this post, I have used nano but you can use whatever you want.
Then, reboot the system
sudo reboot
When the system has booted correctly, then you can start the upgrade process by running
sudo do-release-upgrade
Note: If you intend to upgrade from Ubuntu 20.04, then you will have to repeat this process twice: Once to upgrade to Ubuntu 20.10 and once to 21.04.
After that, you will see the following output.
To finish the process, reboot the system.
After booting you will have Ubuntu 21.04 installed and ready for battle. Check it out by running
cat /etc/lsb-release
Output
DISTRIB_ID=Ubuntu DISTRIB_RELEASE=21.04 DISTRIB_CODENAME=hirsute DISTRIB_DESCRIPTION="Ubuntu Hirsute Hippo"
So, enjoy it
