package libpam-systemd:amd64 208-8ubuntu8.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 128

[weer]

while installin update I get this error

ProblemType: Package
DistroRelease: Ubuntu 14.10
Package: libpam-systemd:amd64 208-8ubuntu8.1
ProcVersionSignature: Ubuntu 3.16.0-25.33-generic 3.16.7
Uname: Linux 3.16.0-25-generic x86_64
ApportVersion: 2.14.7-0ubuntu8
Architecture: amd64
Date: Fri Nov 14 11:41:38 2014
DuplicateSignature: package:libpam-systemd:amd64:208-8ubuntu8.1:subprocess installed post-installation script returned error exit status 128
ErrorMessage: subprocess installed post-installation script returned error exit status 128
InstallationDate: Installed on 2014-06-24 (143 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
SourcePackage: systemd
Title: package libpam-systemd:amd64 208-8ubuntu8.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 128
UpgradeStatus: No upgrade log present (probably fresh install)

[Martin Pitt (pitti)]

This appears to be the same debconf bug as in bug 996712.