[Beginner's Guide] What is Ubuntu PPA? How to Add / Remove / Manage PPAs

Contents:

How to Add / Remove / Manage Ubuntu PPAs:

Manage software sources via configuration files

This is a beginner’s guide tells you what’s an Ubuntu PPA and how to manage PPAs in Ubuntu and / or Linux Mint.

What’s Ubuntu PPA?

PPA, (Personal Package Archives), usually stands for a software repository maintains the packages for Ubuntu based users. Most PPAs are hosted in launchpad.net powered by Canonical Ltd. the company behind Ubuntu.

There are tons of user-contributed software packages as well as official Ubuntu packages published in launchpad.net PPAs. Here are some of them:

You can even browse official Debian packages. For instance, official VLC package by Debian is here: https://launchpad.net/debian/+source/vlc

Some popular applications (e.g., Google Chrome, Spotify, and Oracle VirtualBox) provide official Ubuntu binary packages through their own apt repositories. Not sure whether to call them PPAs, but they work some as launchpad.net PPAs.

How does PPA work?

Launchpad.net has a few hundreds of build machines. PPA maintainers upload their software tarballs as well as the building rules. Then Launchpad will build them and publish the packages into PPAs if succeed.

Each PPA has a repository key. By adding a PPA as well as the key, Ubuntu will trust the packages from that repository. So users can install and update the packages from PPA just like regular system packages via system package manager (e.g., apt command, synaptic package manager) and update manager (Software Updater).

How to Add / Remove / Manage Ubuntu PPAs:

Linux command to add / remove a PPA:

Besides using a graphical application Y PPA Manager, we mostly run add-apt-repository command to add or remove an Ubuntu PPA, as it’s the most convenient way which also handle the keys.

1. Sample command to add a PPA:

sudo add-apt-repository ppa:user_id/ppa_name

Here are the command details:

sudo is required for root user permission. And it may ask you to type user password to confirm.
add-apt-repository is the command to add software repository, you need to follow the command with PPA name.
ppa:user_id/ppa_name is the PPA name, in which user_id is the maintainer’s ID. As each maintainer can create many PPAs, ppa_name is a certain PPA from the maintainer.

Let’s say you’re going to add LibreOffice 7.x PPA, then the command should be:

sudo add-apt-repository ppa:libreoffice/libreoffice-7-0

By going to the PPA web page (click the last link), you’ll see the things clearer.

2. Sample command to remove a PPA:

sudo add-apt-repository --remove ppa:user_id/ppa_name

You may find that it just adds --remove to the command when adding a PPA.

And for removing LibreOffice 7.x PPA, the command should be:

sudo add-apt-repository --remove ppa:libreoffice/libreoffice-7-0

3. Sample command to purge a PPA:

Different to remove PPA, purging a PPA will also downgrade the packages installed from the PPA to the original versions. Just note it may not work if you’ve already removed the PPA.

And the command to purge the LibreOffice 7.x PPA is:

sudo ppa-purge ppa:libreoffice/libreoffice-7-0

You may first install ppa-purge if you don’t have it:

sudo apt install ppa-purge

Graphical tool to manage PPA:

For Ubuntu users, just launch Software & Updates and navigate to Other Software tab, you’ll see all user added third-party software repositories including PPAs listed there, with buttons to add, remove, and edit them.

NOTE adding PPA via the graphical tool you need the apt line instead of the PPA name.

You need to go to PPA web page, click the link “Technical details about this PPA“, choose your Ubuntu edition and copy the repository line. You also have to download the key manually, and import it via Authentication tab.

For Linux Mint, open Software Sources utility and there’s tabs for managing Ubuntu PPAs and additional repositories.

Manage software sources via configuration files

While the main Ubuntu / Linux Mint repositories rely on /etc/apt/sources.list file, all third-party repository files are located in /etc/apt/sources.list.d folder.

The “file_name.list” files are for third-party software repositories, and “file_name.list.save” files are the backups.

For instance Microsoft Edge tells to adding its repository by running command in terminal:

sudo sh -c 'echo "deb [arch=amd64] http://packages.microsoft.com/repos/edge/ stable main" >> /etc/apt/sources.list.d/microsoft_edge.list'

It creates the “microsoft_edge.list” file in the /etc/apt/sources.list.d folder and writes the apt line into it. And usually a command to download & import the GPG key will be provided.

All PPAs and third-party app sources have relevant files under that directories, you can create, edit, or remove these files to manage them and run sudo apt update to apply changes.

Summary:

PPA, stands for (Personal Package Archives), is a way to extend your system package sources. You can either run add-apt-repository command to add / remove PPAs, or use your Linux distribution’s own graphical utility to manage these third-party repositories. Advanced users may also edit the configuration files under /etc/apt/sources.list.d directory.