How to enable proposed archive repo on Ubuntu Linux to install packages

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The proposed repository in Ubuntu is a repository that contains packages that are in the process of being tested for release. To enable the proposed repository on Ubuntu, you can follow these steps:

  1. Open the /etc/apt/sources.list file:
    sudo nano /etc/apt/sources.list
  2. Add the line below to the file, depending on the version of Ubuntu you are running:
    • For Ubuntu 20.04:
      deb http://archive.ubuntu.com/ubuntu focal-proposed restricted main multiverse universe
    • For Ubuntu 18.04:
      deb http://archive.ubuntu.com/ubuntu bionic-proposed restricted main multiverse universe
  3. Save the file and exit the editor.
  4. Update the package list:
    sudo apt-get update
  5. (Optional) Pin the proposed repository to a lower priority than other repositories to prevent packages from the proposed repository from being installed by default:
    echo "Package: *

Pin: release a=focal-proposed Pin-Priority: 400″ | sudo tee /etc/apt/preferences.d/proposed-repository

Replace `focal` with the version of Ubuntu you are running.

Now, you can install packages from the proposed repository by specifying the repository and package name, like this:

sudo apt-get install -t focal-proposed <package-name>

Note: Be careful when installing packages from the proposed repository, as they may contain bugs or other issues that can cause problems with your system. It's recommended to only use the proposed repository for testing and development purposes.

(https://www.colburnschool.edu)

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