:~# apt-get install udev libpam-systemd
Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
libpam-systemd : Depends: systemd (= 215-17+deb8u7) but 215-17+deb8u12 is to be installed
Depends: systemd-shim (>= 8-2) but it is not going to be installed or
systemd-sysv but it is not going to be installed
udev : Depends: libudev1 (= 215-17+deb8u7) but 215-17+deb8u12 is to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).