The repositories contain packaged program files with data on their dependencies. The evolution of methods for installing and managing software packages over time has come to the use of package managers that are tightly integrated with repositories. The good news is that you can do this with the APT package manager ( Advanced Packaging Tool).Ĭloud Servers from €4 / mo Intel Xeon Gold 6254 3.1 GHz CPU, SLA 99,9%, 100 Mbps channel Try Installation using the package manager Thus, the more programs and dependencies appear on the server, the more difficult it is to track and manage them. Thus, a dependency appears - if we want to install program 'A', which uses the libraries of program 'B' when working, we must first install program 'B' (which, in turn, may have its dependencies). So you have to use a number above 1000 for this scenario.Īfter you setup pinning and set priority as 1001 for stable release, apt will choose stable versions of package and its dependencies when you install it.One of the most difficult tasks that arise during the installation of Unix programs is dependency tracking.Īny more or less complex program in its work uses the capabilities provided by other modules, system libraries, etc. Apt ignores values below 1000 for downgrade operations. Add following lines to /etc/apt/preferences file.

So you should pin all packages to stable version to downgrade a package. Apt choose candidate package according to priority of a release/version/repository set in pinning options. Pinning is a process that allows you to remain on a version for a package or remain on a release of Debian for specified packages.

In that case, you can use pinning feature of apt to downgrade package with its all dependencies.

And it usually lists lots of broken dependencies.

dpkg:īut when you downgrade a package, apt doesn’t downgrade dependencies automatically. Using this feature, you can downgrade a package to stable version if you install a package from test or unstable repository before. Debian package manager supports installing packages with version numbers.

Dpkg install dependencies