How to Add Mainline Repository for Ubuntu-Based Systems

GNU/Linux Ubuntu Adding Mainline Repository

Hi! The Tutorial shows you Step-by-Step How to Add Mainline Software Repository in Ubuntu-Based GNU/Linux OSes.

And Mainline GUI for Ubuntu is a a UI Tool to manage the Linux Versions on Ubuntu based Desktops.

So this Repo Setup is Valid for All the Ubuntu-based Distros like:

• Linux Mint
• Lubuntu
• Kubuntu
• Xubuntu
• Zorin OS
• Elementary OS
• Linux Lite
• Bodhi Linux
• Kde Neon
• Pop!_OS
• Voyager
• Trisquel
• LXLE
• feren OS
• Peppermint
• Q4OS
• Linux Ultimate Edition

1. 1. Launching Terminal

   How to QuickStart with Command Line on Ubuntu

   Bash Shell Ubuntu QuickStart Guide

   Getting-Started with Command Line on Ubuntu

2. 2. Adding Mainline Repo

   Then to Add Mainline Repository for Ubuntu
   Execute:

   sudo add-apt-repository -y ppa:cappelikan/ppa

   Authenticate with the User’s Admin Pass.
   If Got “User is Not in Sudoers file” then see: How to Enable sudo.

3. 3. Refreshing Ubuntu Repo Sources

   Next to Refresh Ubuntu Apt Repository Sources
   Needed on some Ubuntu derivatives:

   sudo apt update

   In case of Not Found Issue for the Latest Ubuntu release then you need to Amend the Repo Manually switching it back to the Previous one. So for instance on 21.10 editing the Repository with nano Editor:

   sudo nano /etc/apt/sources.list.d/*cappelikan*.list

   And change “impish” in “hirsute”.
   Ctrl+x to Save & Exit from nano Editor.
   Last, Refresh the Apt Sources again.

4. 4. Mainline Getting Started

   Finally, to Get Started with Mainline Kernel Updating Tool for Ubuntu

   Mainline Ubuntu Quick Start Guide

   Mainline Setup on Ubuntu