Installing these will allow you to install additional applications.

Find out how to do this and more.

with a rich variety of applications available, over the years.

synology nas

There are three other repositories which you might enable, or disable, namely Universe, Multiverse and Restricted.

What is theUniverseRepository?

TheUniverserepository provides a collection of additional software which can be installed on your Ubuntu workstation.

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To enable this repository, click onActivitiesat the top left of your Ubuntu Desktop/GUI and typesoftware.

After this, poke the ‘Software & Updates’ icon, which is a little darker then theSoftware Updatericon.

Once inside theSoftware & Updateswindow, tick theCommunity-maintained free and open-source software (universe)selection box.

Ubuntu Software & Updates showing the main, universe, restricted and multiverse repositories

As soon as you do, likely an authentication dialog will present itself.

Then click theClosebutton at the bottom right of the dialog box.

A new popup will show:

Click ‘Reload’ to continue, and the software repositories caches (i.e.

Clicking through to Software & Updates in Ubuntu

what is available on the repository is stored locally on your gear) will be refreshed.

What is theMultiverseRepository?

The UbuntuMultiverserepository is contains software packages which may come with copyright or legal issues.

Question to reload the repositories shown by Ubuntu when enabling (or disabling) repositories

This repository is also community supported.

With potentially less-supported and closed-source packages in this repository, the risk for security issues is somewhat larger here.

This can also apply to packages in the restricted repository we will discuss below.

They may simply not be able to be bundled therewith.

Such packages can therefore not be bundled with the main operating system.

One can research packages and their licenses to find out if this applies.

Remember to reload when you’re done.

What is theRestrictedRepository?

The UbuntuRestrictedrepository contains proprietary drivers.

For example, you may find NVIDIA GPU drivers in here.

This repository is officially supported by the Ubuntu team.

The software in this repository is build somewhat ‘downstream’ from the hardware manufacturers/vendor.

Enabling the UbuntuRestrictedrepository again requires identical steps to the ones shown above.

Simply tickProprietary drivers for devices (restricted).

And as before, remember to reload when done.

We also learned about the differences between the different repositories and provided some tips along the way.Enjoy!