Quite sometime back I wrote a blog entry on apt-pinning to mix multiple repositories in debian and prioritize them. Recently, I felt the need to do the same on my raspberry pi.
I use rsnapshot to backup remote systems. Rsnapshot has an associated perl script which is meant to send beautiful reports via email at the end of the backup. The script in the version which came with raspbian was broken (1.3.1-4+deb8u1) and I needed 1.4.2-1, which is available in Debian Stretch.
Following my earlier post, I performed the following steps to perform the installation of the required version without impacting the rest of the system. As you can see that the priority of Jessie is higher than that of Stretch, which will ensure that the system does not get messed up when you do an upgrade.
# Create the preferences file for jessie and stretch as shown below $ sudo vi /etc/apt/preferences.d/jessie.pref Package: * Pin: release n=jessie Pin-Priority: 900 $ sudo vi /etc/apt/preferences.d/stretch.pref Package: * Pin: release a=stretch Pin-Priority: 750 # Define the package sources for both jessie and stretch $ sudo vi /etc/apt/sources.list.d/jessie.list deb http://mirrordirector.raspbian.org/raspbian/ jessie main contrib non-free rpi $ sudo vi /etc/apt/sources.list.d/stretch.list deb http://mirrordirector.raspbian.org/raspbian/ stretch main contrib non-free rpi # Refresh the cache and sources list $ sudo apt-get update # Install the desired package by specifying the repository from which # it has to be installed $ sudo apt-get install rsnapshot -t stretch
Please be careful before performing these steps in a production system.