Calibre is a free and powerful e-book software that can be used to catalog your books, fetch metadata for them automatically with the help of its built-in tools, or you could do it manually if needed; convert texts into various formats, including ones made explicitly by the device manufacturers so they’ll display adequately on readers like Kindle Fire HDX 8.9″, send files straight away without having any interruptions along route thanks again network features which also allow users download content over 1K websites updated daily!
In the following tutorial, you will learn how to install Calibre on Ubuntu 20.04 LTS Focal Fossa using two different methods with APT and Flatpak.
Table of Contents
The first step is to make sure your system is up-to-date to avoid issues during the installation and for good practice. This is done by opening your terminal and using the following command.
sudo apt update && sudo apt upgrade -y
Install Calibre – APT Method
The first method is to install Calibre from Ubuntu 20.04 default repository, giving you a stable, reliable version of the software but can lag in the future as LTS means stability over new features.
Use the following command to install Calibre as follows.
sudo apt install calibre -y
Install Calibre – Flatpak Method
The second option is to use the Flatpak package manager, which is not installed on Ubuntu distributions, given Snap, which is Flatpak’s rival, is owned by Canonical and Ubuntu. However, Flatpak is still available to install from Ubuntu’s default repository.
First, install the Flatpak manager if it was removed previously.
sudo apt install flatpak -y
For users installing Flatpak for the first time, it is often recommended to reboot your system. Failure to do this can occur with odd issues arising, such as paths not being generated for icons.
SKIP THE REBOOT IF FLATPAK IS INSTALLED.
Next, you need to enable Flatpack using the following command in your terminal:
sudo flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
Now install Calibre using the following flatpak command.
flatpak install flathub com.calibre_ebook.calibre -y
How to Launch Calibre
Now that you have the application installed, launching can be done in a few ways.
Launch immediately from your terminal by typing the following command.
Alternatively, Flatpak users will need to launch using the command below from a terminal instance:
flatpak run com.calibre_ebook.calibre
Most desktop users would prefer launching using the application icon, this can be done using the following path.
Activities > Show Applications > Calibre.
Once opening for the first time, you will encounter a welcome wizard pop-up. The first step is to change the default installation directory, which is recommended for most users.
Click on Next > to proceed.
The wizard will ask Ubuntu users for a device, so you should be using Generic.
Click on Next > to proceed.
For the final welcome wizard screen, click on Finish.
Once the first welcome wizard is complete, you will arrive at the Calibre application.
How to Update/Upgrade Calibre
Depending on the method used, the following commands can be used to update.
APT Update Method
sudo apt upgrade && sudo apt upgrade
Flatpak Update Method
How to Remove (Uninstall) Calibre
Use one of the following commands to suit the original installation method for users who no longer require the application.
APT Remove Method
sudo apt autoremove calibre -y
Flatpak Remove Method
flatpak uninstall --delete-data com.calibre_ebook.calibre
Next, run the following command for any leftover clean-up.
flatpak remove --unused
Comments and Conclusion
If you’re an avid reader and have a library of books, Calibre is the perfect software. It’s free, easy to use, and can convert texts into different formats, so they’ll be readable on any device. With its network features, you can download content from over 1K websites updated daily.