How to Add a Repository to the APT Sources List on Ethereum Classic (ETC) and Debian-Based Systems

In this article, we will explore the steps required to add a new repository to the Advanced Packaging Tool (APT) sources list on Ethereum Classic (ETC) systems or any Debian-based system such as Ubuntu.

Step 1: Open the Terminal

There are two common ways to open the terminal:

Find it in your applications menu. Press Ctrl Alt T on your keyboard.

Step 2: Edit the Sources List

To add a new repository, you will need to edit the file or create a new file in the same directory. Here are the detailed steps:

Option 1: Edit the Main File

Open the sources list in a text editor with root privileges. Use the nano editor as an example: sudo nano Add the new repository line at the end of the file. For example: deb focal main Save and exit the editor by pressing Ctrl X, then Y, and Enter in nano.

Option 2: Create a New File in

Create a new file for your repository: sudo nano Add the repository line here as well: deb focal main Save and exit the editor.

Step 3: Update the Package List

After adding the repository, you need to update your package list to include the new repository:

sudo apt update

This command will fetch the latest information about available packages from the repositories you have defined.

Step 4: Install Packages from the New Repository

You can now install packages from the newly added repository:

sudo apt install package-name

Remember to replace package-name with the actual name of the package you wish to install.

Notes

Make sure to replace eth-classic-repo-url and focal main with the actual repository URL and distribution name you wish to add. If the repository requires a GPG key for verification, you may need to add it using:

wget -qO - eth-classic-repo-url | sudo apt-key add -

This approach should help you successfully add a repository to your APT sources list. If you have any specific repository in mind, feel free to ask for more detailed instructions.

Additional Tips

When dealing with complex repositories, it's always a good idea to:

Backup the or file before making changes. Ensure you have the necessary permissions to edit these files. Verify the authenticity of the new repository by checking the GPG keys and trusting the repository.

If you encounter any issues during the process, you can refer to the official documentation or seek help from the community forums.