How to upgrade to Ubuntu 20.04 from an older Ubuntu version?

In previous articles hLet's talk about the features that come with this new version of Ubuntu 20.04 LTS, as well as also a small installation guide which is aimed at newbies. Now in this new post we are going to share with you a few simple steps with which we can upgrade from a previous version of Ubuntu (that has support) to this new version.

This process is really simple and applies to any flavor of Ubuntu, but a lot of attention is required to what is going to be done because the system may experience some failures that are generally caused by not removing third-party repositories from the system or by unfulfilled dependencies.

Likewise also before starting this process I must warn that doing this type of update is not recommended, if not it is best to back up the information and perform the installation from scratch.

But because many users cannot do that for X reasons, we leave you here a simple method to upgrade to Ubuntu 20.04 LTS

Upgrade process from Ubuntu 18.04 LTS and Ubuntu 19.10 to Ubuntu 20.04 LTS

Before starting any update process, you must Perform the following procedures to avoid problems during the process.

• Remove proprietary drivers (Nvidia, AMD, Intel and use open source drivers
• Disable all third-party repositories
• To avoid a large number of errors and even the installation freeze, it is better to do an apt update and apt upgrade first

You can make a backup of these with some of the tools that have already been mentioned here on the blog.

Also In case you do not skip the notice to be able to update to the new version, you must be patient Well, because many users are currently updating, it can cause some saturation or if you are already updating your system you may notice that the download of all the components is somewhat slow.

To be able to force the update notification eIt is extremely necessary that we make some adjustments to our equipment, for it dWe must go to "Software and Updates" which we will search from our applications menu.

And in the window that opened, we must go to the Updates tab, among the options shown in "Notify me of a new version of Ubuntu" here we are going to select the option:

Lastly, we must configure the system to check and warn if there is a new version. In order to achieve this, we just have to open a terminal and in it we type the following commands:

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

Done this we are going to restart the system, with this we are going to guarantee that we have the most current packages in the system and avoid possible complications.

Installed the new version of Ubuntu 20.04 LTS

After the system reboots, we will log in again and in a few minutes you will have to skip the “new Ubuntu version” availability window.

But if not, we are going to open a terminal and type the following command in it:

sudo do-release-upgrade

Now we simply have to click on the button «Yes, update now» and then we will be asked to enter the password to authorize the update.

Now if this did not make the update notice appear. We can force this process, for this we are going to open a terminal with Ctrl + Alt + T and in it we are going to execute the following command:

sudo update-manager -d

This command will basically help you to do is to open the update tool which when opened will be forced to check if there is a version higher than the one you are using.

This process needs to download 1GB or more packages and takes up to 2 hours or more to configure. Therefore, you must wait for the process to finish.

At the end of this process, if everything was executed regularly, you should know that there are packages that become obsolete with the update, so you will be informed and you will be able to choose between "Keep" and "Delete", the latter option being the most recommended.

Last we must perform a last reboot For all the changes to be applied and come into effect, and also if you are on Ubuntu 16.04, you must first update to Ubuntu 18.04 LTS and then to 20.04 LTS following these same steps.