[Bug 1921574] Re: package libpam-systemd:amd64 246.6-1ubuntu1.2 failed to install/upgrade: installed libpam-systemd:amd64 package post-installation script subprocess returned error exit status 128

[Balint Reczey]

*** This bug is a duplicate of bug 1699360 ***
    https://bugs.launchpad.net/bugs/1699360


Use of uninitialized value $ret in string eq at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 134.
dpkg: error processing package libpam-systemd:amd64 (--configure):
 installed libpam-systemd:amd64 package post-installation script subprocess returned error exit status 128

libpam-systemd.postinst is very short:
---
#!/bin/sh

set -e

pam-auth-update --package

#DEBHELPER#
---
, and debhelper does not inject any script.

I think the most likely cause is debconf connection with the graphical
front end going away.

** This bug has been marked a duplicate of bug 1699360
   package libpam-systemd:amd64 232-21ubuntu4 failed to install/upgrade: subprocess installed post-installation script returned error exit status 128

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Title:
  package libpam-systemd:amd64 246.6-1ubuntu1.2 failed to
  install/upgrade: installed libpam-systemd:amd64 package post-
  installation script subprocess returned error exit status 128

Status in systemd package in Ubuntu:
  New

Bug description:
  I have no extra information.

  ProblemType: Package
  DistroRelease: Ubuntu 20.10
  Package: libpam-systemd:amd64 246.6-1ubuntu1.2
  ProcVersionSignature: Ubuntu 5.8.0-44.50-generic 5.8.18
  Uname: Linux 5.8.0-44-generic x86_64
  ApportVersion: 2.20.11-0ubuntu50.5
  Architecture: amd64
  CasperMD5CheckResult: skip
  Date: Tue Mar 23 18:28:20 2021
  ErrorMessage: installed libpam-systemd:amd64 package post-installation script subprocess returned error exit status 128
  InstallationDate: Installed on 2020-12-07 (110 days ago)
  InstallationMedia: Ubuntu 20.10 "Groovy Gorilla" - Release amd64 (20201022)
  Python3Details: /usr/bin/python3.8, Python 3.8.6, python3-minimal, 3.8.6-0ubuntu1
  PythonDetails: N/A
  RelatedPackageVersions:
   dpkg 1.20.5ubuntu2
   apt  2.1.10ubuntu0.2
  SourcePackage: systemd
  Title: package libpam-systemd:amd64 246.6-1ubuntu1.2 failed to install/upgrade: installed libpam-systemd:amd64 package post-installation script subprocess returned error exit status 128
  UpgradeStatus: No upgrade log present (probably fresh install)

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