How to upgrade Ubuntu 18.04 LTS to Ubuntu 20.04 LTS – Linux Tip

On this article, I’m going to indicate you the best way to improve Ubuntu Desktop 18.04 LTS to Ubuntu Desktop 20.04 LTS and Ubuntu Server 18.04 LTS to Ubuntu Server 20.04 LTS. So, let’s get began.

Upgrading Ubuntu Desktop 18.04 LTS to 20.04 LTS:

When you’re utilizing Ubuntu Desktop 18.04 LTS and want to improve to Ubuntu Desktop 20.04 LTS, then this part is for you.

First, open Software program & Updates app from the Utility Menu of Ubuntu 18.04 LTS.

Now, make sure that all of the marked checkboxes are checked within the Ubuntu Software program tab.

You may additionally wish to change the Ubuntu mirror to Important server when you’re having issues with the later part of this text. As a result of, the updates might not be instantly accessible to your closest mirror. It might take time for the updates to propagate to all of the Ubuntu official mirrors.

Now, go to the Updates tab. Be certain that all of the marked checkboxes are checked.

Additionally guarantee that Notify me of recent Ubuntu model is ready to For long-term assist variations.

Then, shut the Software program & Updates app.

Earlier than you improve to Ubuntu 20.04 LTS, you need to replace all the present packages of your Ubuntu 18.04 LTS to the most recent accessible variations.

To try this, open the Software program Updater app from the Utility Menu of Ubuntu 18.04 LTS.

The Software program Updater app ought to examine for brand spanking new updates.

All of the accessible updates needs to be displayed. Click on on Set up Now.

Kind in your login password and click on on Authenticate.

The updates are being downloaded and put in. It might take some time relying on the pace of your web.

As soon as the updates are put in, click on on Restart Now.

As soon as your laptop boots, open a Terminal (press + + T) and run the next command:

Software program Updater ought to show the message Ubuntu 20.04 is now accessible. Click on on Improve…

Now, sort in your login password and click on on Authenticate.

Ubuntu 20.04 LTS launch notes needs to be displayed. Now, click on on Improve.

Ubuntu 18.04 LTS is being ready for the improve. It might take some time.

Click on on Begin Improve.

Click on on Shut.

The improve ought to begin. It might take some time to finish relying on the pace of your web connection.

Ubuntu 18.04 LTS is being upgraded to Ubuntu 20.04 LTS.

Ubuntu 18.04 LTS is being upgraded to Ubuntu 20.04 LTS.

Ubuntu desires to take away packages that aren’t supported in Ubuntu 20.04 LTS. Click on on Take away to take away them.

The unsupported packages are being eliminated.

As soon as the improve is full, click on on Restart Now.

Your Ubuntu 18.04 LTS machine needs to be upgraded to Ubuntu 20.04 LTS. Take pleasure in!

Upgrading Ubuntu Server 18.04 LTS to 20.04 LTS:

If you wish to improve Ubuntu Server 18.04 LTS to Ubuntu Server 20.04 LTS, then this part is for you.

First, replace the APT package deal repository cache with the next command:

As you possibly can see, 23 packages will be upgraded.

It’s finest to improve all the present packages to their newest variations earlier than making an attempt to improve to Ubuntu 20.04 LTS.

Improve all of the packages of your Ubuntu 18.04 LTS machine with the next command:

Now, press Y after which press .

The updates are being put in.

At this level, the package deal improve needs to be full.

Now, reboot your Ubuntu Server 18.04 LTS machine with the next command:

Now, to guarantee that update-manager-core is put in, run the next command:

In my case, it’s already put in.

Now, examine whether or not you possibly can improve to Ubuntu 20.04 LTS with the next command:

It might report that There is no such thing as a growth model of an LTS accessible. If that’s the case, you must run do-release-upgrade command with the -d flag.

Run do-release-upgrade with the -d flag as follows:

do-release-upgrade is checking for brand spanking new Ubuntu launch (Ubuntu 20.04 LTS on this case).

When you’re making an attempt to improve your Ubuntu Server 18.04 LTS over SSH (as I’m), then you must permit the updater to run an SSH server on port 1022. In case, the improve fails and you’re unable to entry your Ubuntu Server 18.04 LTS over SSH (port 22), then it is possible for you to to hook up with the backup SSH server working on port 1022.

To substantiate that, press Y after which press .

In case your Ubuntu Server 18.04 LTS has firewall configured to dam port 1022, then open one other SSH session and run the next command to permit entry to the port 1022:

Then, press to proceed.

The package deal repository info is being up to date.

Now, it ought to present you a abstract of the improve. As you possibly can see, 17 packages aren’t formally supported anymore. three packages are going to be eliminated. 133 new packages will likely be put in and 450 packages will likely be upgraded. In complete, about 336 MB of information will likely be downloaded from the web. The numbers will likely be totally different for you.

Anyway, to proceed the improve, press Y after which press .

All of the required packages are being downloaded. It might take some time to finish relying on the pace of your web connection.

The updates are being put in.

You can be requested to choose an LXD model. When you don’t care (depart 4.0 – the default model), simply press .

The improve ought to proceed.

In case you have edited some configuration information, you may be requested whether or not you wish to maintain the model you at present have or exchange it with the model that comes by default with the replace (the package deal maintainer model). The default motion is to maintain the model you have already got.

On this case, I’ve modified the /and many others/nanorc file. The default motion N or O will maintain you retain the /and many others/nanorc file you have already got.

If you choose Y or I, then the /and many others/nanorc file will likely be changed by the one supplied by the up to date package deal.

You possibly can choose D to see the distinction between these 2 variations earlier than you resolve which model to maintain.

I’m going to maintain the model that I’ve. So, I’m simply going to press .

NOTE: It is best to maintain the model you will have. In any other case, the configuration you’ve achieved will likely be misplaced. For instance, when you have configured an Apache net server, and also you changed the configuration file with the package deal maintainer model, then you’ll have to reconfigure your Apache webserver after the improve. I’m certain, you don’t need that.

You might even see such a immediate many instances. Choose the choice that you just suppose is the perfect for you and press .

Now, you may be requested to take away the out of date (unsupported packages). To substantiate, press Y after which press .

The out of date packages are being eliminated.

As soon as the improve is full, you may be requested to restart your server. Press Y after which press .

Take pleasure in Ubuntu Server 20.04 LTS as soon as your server boots.

So, that is the way you improve Ubuntu 18.04 LTS to Ubuntu 20.04 LTS. Thanks for studying this text.