The error in the logs is:
Use of uninitialized value in string eq at
/usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 227, <GEN0> line 19.
Use of uninitialized value $ret in string eq at
/usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 237, <GEN0> line 19.
Use of uninitialized value $_[1] in join or string at
/usr/share/perl5/Debconf/DbDriver/Stack.pm line 111, <GEN0> line 19.
Use of uninitialized value $val in substitution (s///) at
/usr/share/perl5/Debconf/Format/822.pm line 83, <GEN2> line 14.
Use of uninitialized value $val in concatenation (.) or string at
/usr/share/perl5/Debconf/Format/822.pm line 84, <GEN2> line 14.
dpkg: error processing package libpam0g:amd64 (--configure):
installed libpam0g:amd64 package post-installation script subprocess returned
error exit status 128
This suggests a crash in the debconf frontend that the pam maintainer
script was talking to.
Without a reproducible case for this, it is probably not actionable.
** Package changed: pam (Ubuntu) => debconf (Ubuntu)
** Changed in: debconf (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/2035063
Title:
package libpam0g:amd64 1.3.1-5ubuntu4.6 failed to install/upgrade:
installed libpam0g:amd64 package post-installation script subprocess
returned error exit status 128
Status in debconf package in Ubuntu:
Incomplete
Bug description:
running Ubuntu off a USB drive on my hp pavilion windows 10 laptop.
This issue came up after upgrade from Bionic Beaver.
ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: libpam0g:amd64 1.3.1-5ubuntu4.6
ProcVersionSignature: Ubuntu 5.4.0-162.179-generic 5.4.246
Uname: Linux 5.4.0-162-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.27
Architecture: amd64
CasperMD5CheckResult: skip
Date: Sun Sep 10 16:48:50 2023
ErrorMessage: installed libpam0g:amd64 package post-installation script
subprocess returned error exit status 128
InstallationDate: Installed on 2023-09-06 (4 days ago)
InstallationMedia: Ubuntu 18.04.6 LTS "Bionic Beaver" - Release amd64
(20210915)
Python3Details: /usr/bin/python3.8, Python 3.8.10, python3-minimal,
3.8.2-0ubuntu2
PythonDetails: N/A
RelatedPackageVersions:
dpkg 1.19.0.5ubuntu2.4
apt 2.0.9
SourcePackage: pam
Title: package libpam0g:amd64 1.3.1-5ubuntu4.6 failed to install/upgrade:
installed libpam0g:amd64 package post-installation script subprocess returned
error exit status 128
UpgradeStatus: No upgrade log present (probably fresh install)
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