package libpam-systemd:amd64 229-4ubuntu6 failed to install/upgrade: subprocess installed post-installation script returned error exit status 128

[Leszek]

During installation of this package my PC froze and the only way was to make reboot after switching to console (GUI was totally frozen)

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: libpam-systemd:amd64 229-4ubuntu6
ProcVersionSignature: Ubuntu 4.4.0-22.39-generic 4.4.8
Uname: Linux 4.4.0-22-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
Date: Fri May 13 20:14:26 2016
ErrorMessage: subprocess installed post-installation script returned error exit status 128
InstallationDate: Installed on 2016-02-28 (75 days ago)
InstallationMedia: Ubuntu-GNOME 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160225.1)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1
 apt 1.2.12~ubuntu16.04.1
SourcePackage: systemd
Title: package libpam-systemd:amd64 229-4ubuntu6 failed to install/upgrade: subprocess installed post-installation script returned error exit status 128
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Alberto Salvia Novella (es20490446e)]

Did the computer work well after reboot?

When answered please set this bug status back to "confirmed". Thank you.

[Leszek (bigl-aff)]

Yes, after reboot everything worked.

[wilhelm (mondfahrer)]

I got the bug during update from 15.10 to 16.04 gnome flavoured ubuntu (amd64)

the error was something like:
failed to install systemd exit code 2

and all the depending packages (including gnome itself) failed due to dependency problems

the distro-upgrade ended with a partial rollback.

Before reboot I did an
dpkg --configure -a
    which resulted in: too many errors, break
So I tried
apt-get install systemd
    which worked perfectly
and afterwards I did
apt-get update
apt-get upgrade
    and my distro-upgrade was fine

PS sorry for not havin noted down the exact error messages, I was panicking a little