Configure
=========

Keys
----

.. code:: shell

 apt-key add "path/to/key/file"

Configuration
-------------

* etc/apt/apt.conf

::

 APT::Default-Release buster;
 APT::Get::Show-Versions true;
 Dpkg::Progress-Fancy true;

 Acquire::Check-Valid-Until false;

* etc/apt/preferences

::

 Package: *
 Pin: release n=stretch-backports
 Pin-Priority: 400

 Package: *
 Pin: release n=buster
 Pin-Priority: 200

 Package: *
 Pin: release n=sid
 Pin-Priority: 100

* etc/apt/sources.list

.. todo::

 deb.debian.org ↔ ftp.cc.debian.org

::

 deb-src https://deb.debian.org/debian sid main contrib non-free

 deb [arch=amd64,i386] https://deb.debian.org/debian sid main contrib non-free

 deb [arch=amd64,i386] https://deb.debian.org/debian bullseye main contrib non-free
 deb [arch=amd64,i386] https://deb.debian.org/debian bullseye-updates main contrib non-free
 deb [arch=amd64,i386] https://deb.debian.org/debian-security bullseye-security main contrib non-free

 deb [arch=amd64,i386] https://deb.debian.org/debian buster main contrib non-free
 deb [arch=amd64,i386] https://deb.debian.org/debian buster-backports main contrib non-free
 deb [arch=amd64,i386] https://deb.debian.org/debian buster-updates main contrib non-free
 deb [arch=amd64,i386] https://deb.debian.org/debian-security buster/updates main contrib non-free

 deb [arch=amd64] https://deb.debian.org/debian stretch main contrib non-free
 deb [arch=amd64] https://deb.debian.org/debian stretch-backports main contrib non-free
 deb [arch=amd64] https://deb.debian.org/debian stretch-updates main contrib non-free
 deb [arch=amd64] https://deb.debian.org/debian-security stretch/updates main contrib non-free

 deb [arch=amd64] https://deb.debian.org/debian jessie main contrib non-free
 deb [arch=amd64] https://deb.debian.org/debian-security jessie/updates main contrib non-free

.. warning::

 apt's file protocol handling fails with locations containing spaces

::

 deb file:/media/deb.debian.org/debian stretch main contrib non-free