• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar

It's FOSS Academy

Learn Linux for FREE

  • It’s FOSS Main Site
  • About
  • Feedback
  • Community Forum
  • Donate

A Necessary In-depth Look into Ubuntu’s Repository System

December 25, 2021 by abhishek

Current Status
Not Enrolled
Price
Free
Get Started
Login to Enroll

When you start using Ubuntu or an Ubuntu-based distribution, you’ll find yourself using apt commands to install software like this:

sudo apt install package_name

You’ll also install additional software using the 3-step PPA command:

sudo add-apt-repository ppa:PPA_Name/ppa
sudo apt update
sudo apt install package_from_ppa

And when you start adding random external repositories, sooner or later, you’ll encounter some update error.

Now, you can search for the error on the internet and perhaps fix it as well. But most of the time, you won’t understand what causes the problem and how it was fixed.

But if you understand the repository mechanism in Ubuntu, you’ll understand the root cause of the problem and fix it accordingly.

Now, you might find all this information in fragments on It’s FOSS and various forums. But the fragmented information is not easy to understand.

Hence, I created this course to give you a comprehensive understanding of how the repository system works.

This is intended for end users, not developers. I am not going to show you how to package an application for Ubuntu. You’ll get necessary knowledge for maintaining your system’s repository sources.

This course is also beneficial for Linux Mint, elementary OS and other distributions based on Ubuntu.

Course Content

Understand Ubuntu Repository Mechanism
What is a package manager?
Ubuntu’s Default Repositories
Understanding sources.list
Adding External Repositories
Going in-depth with PPA
What’s the purpose of a PPA?
Things to know about using PPA
Adding a PPA
Removing a PPA
Troubleshooting Common Errors
Failed to Download Repository Information
Repository Does Not Have a Release File
Problem With MergeList
Target Packages is configured multiple times

Primary Sidebar

Course Home
Understand Ubuntu Repository Mechanism
What is a package manager?
Ubuntu’s Default Repositories
Understanding sources.list
Adding External Repositories
Going in-depth with PPA
What’s the purpose of a PPA?
Things to know about using PPA
Adding a PPA
Removing a PPA
Troubleshooting Common Errors
Failed to Download Repository Information
Repository Does Not Have a Release File
Problem With MergeList
Target Packages is configured multiple times

Copyright © 2022 · Genesis Sample on Genesis Framework · WordPress · Log in