Ubuntu 19.10 Eoan Ermine after installation

Although I'm not a friend of Ubuntoids (since Debian exists) I decided to try it new edition Ubuntu 19.10 Eoan Ermine.

Installing the new operating system won't be difficult for you, since it hasn't changed anything in the installer that Canonical has been using for years. Canonical's operating system comes in many flavors (different desktop environments). I first chose the Ubuntu 19.10 Eoan Ermine ISO that uses it Gnome DE, knowing that I would have to change it to KDE Plasma later, because Gnome's desktop scaling never pleased me.

Gnome DE has a display option screenx1 and x2, which doesn't help with 1920×1080 HD displays. On the contrary, the HiDPI system of KDE Plasma is much easier to use with more options since it offers scaling of the order of 1.1, 1.2, 1.3, 1.4 etc.

Choosing the regular ISO and not Kubuntu was because I wanted to see them default Gnome tools.

But before we go into the description of the KDE installation, let's take a look at the picture above.
The new version supports (experimental) the ZFS file system. Yes it's still in the experimental phase, but you can choose to use ZFS instead of the default EXT4 file system when installing Ubuntu 19.10.
Another very important thing is the addition of its proprietary drivers NVIDIA στο πρότυπο ISO. Αυτό σημαίνει ότι τώρα μπορείτε να εγκαταστήσετε το ιδιόκτητο πρόγραμμα οδήγησης γραφικών της NVIDIA κατά την εγκατάσταση του Ubuntu 19.10 ακόμα και όταν είστε εκτός connections.

NVIDIA drivers are about 115 MB in size and this increases the size of ISO. Flavors like Ubuntu MATE have removed less commonly used programs like language packs to maintain the ISO size of around 2 GB. Of course, you can download these packages after you install your operating system.

After a first glance, I decided to install KDE Plasma, since trying to increase the font size didn't have the expected effect of scaling important applications such as the Firefox browser.

To install Kubuntu DE:

Open the Terminal application via Dash or Ctrl + Alt + T shortcut.
We will first install Tasksel, a basic application for installing Kubuntu.

sudo apt install tasksel

The system will ask you to provide the password for your sudo account. Enter the password to start the installation process. During installation, the system will prompt you with a Y / n option to confirm the installation. Type y and press Enter to finish the software installation.

Now that you have tasksel installed on your system, type the following command to install the Kubuntu desktop:

sudo tasksel install kubuntu-desktop

The two images below will appear. Simply press Enter on the first one, and in the second, select the display manager you want.

I chose the KDE DM (SDDM) because it's my closest.

In some systems, this second option is not presented alone. For these systems, you will need to manually install sddm using the following command:

sudo apt install sddm

and after

sudo dpkg-reconfigure sddm

After setting up sddm, you should do a restart on your system. After login you will have a base, with all the Gnome applications, but with the possibilities KDE HiDPI setting.