Explanation: tar, cuz https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=819978 Explanation: kernel & btrfs-tools, because btrfs is getting a lot of active Explanation: dev, and their mailing list says better to use recent version Explanation: to avoid bugs. linux-base is needed for the kernel, Explanation: which you can find out by failing Explanation: apt-get install linux-image-amd64/jessie-backports Explanation: And then trying aptitude -s install, or Explanation: apt-get -t jessie-backports install linux-image-amd64 Explanation: Explanation: Package: tar linux-image-amd64 linux-base btrfs-tools Pin: release a=jessie-backports Pin-Priority: 500 Package: * Pin: release a=testing Pin-Priority: -10 Package: * Pin: release a=testing-updates Pin-Priority: -10