[Bug 1964561] Re: package libpam-runtime 1.3.1-5ubuntu4.3 failed to install/upgrade: installed libpam-runtime package post-installation script subprocess returned error exit status 255

[Steve Langasek]

On Fri, Mar 11, 2022 at 05:53:33PM -0000, Seth Arnold wrote:
> These lines from the logs look most relevant:
> 
> Unpacking libpam-runtime (1.3.1-5ubuntu4.3) over (1.3.1-5ubuntu4.1) ...
> Setting up libpam-runtime (1.3.1-5ubuntu4.3) ...
> Can't locate object method "new" via package "Debconf::Element::Noninteractive::Multiselect" (perhaps you forgot to load "Debconf::Element::Noninteractive::Multiselect"?) at /usr/share/perl5/Debconf/FrontEnd.pm line 68, <GEN1> line 8.
> Use of uninitialized value $ret in scalar chomp at /usr/share/perl5/Debconf/Client/ConfModule.pm line 132, <STDIN> line 7.
> Use of uninitialized value $ret in split at /usr/share/perl5/Debconf/Client/ConfModule.pm line 133, <STDIN> line 7.
> Use of uninitialized value $ret[0] in string eq at /usr/share/perl5/Debconf/Client/ConfModule.pm line 134, <STDIN> line 7.
> dpkg: error processing package libpam-runtime (--configure):
>  installed libpam-runtime package post-installation script subprocess returned error exit status 255

> Is pam missing a versioned pre-depends?

No. a) this is happening at package setup time (so: in the postinst, not in
the preinst, and pre-depends are not relevant), b) libpam-runtime has had
the correct dep on debconf for years (decades?).

> or is something not prepared to handle a non-interactive update?

Also no.  This seems to be some strange breakage of the debconf package on
the system; possibly filesystem corruption, because the packaging system
should not allow such a situation.

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https://bugs.launchpad.net/bugs/1964561

Title:
  package libpam-runtime 1.3.1-5ubuntu4.3 failed to install/upgrade:
  installed libpam-runtime package post-installation script subprocess
  returned error exit status 255

Status in pam package in Ubuntu:
  New

Bug description:
  I found this bug when I upgrade my ubuntu 20.04 LTS using command
  "apt-get upgrade"

  ProblemType: Package
  DistroRelease: Ubuntu 20.04
  Package: libpam-runtime 1.3.1-5ubuntu4.3
  ProcVersionSignature: Ubuntu 5.13.0-35.40~20.04.1-generic 5.13.19
  Uname: Linux 5.13.0-35-generic x86_64
  NonfreeKernelModules: crc32_pclmul
  ApportVersion: 2.20.11-0ubuntu27.16
  Architecture: amd64
  CasperMD5CheckResult: skip
  Date: Fri Mar 11 10:43:38 2022
  ErrorMessage: installed libpam-runtime package post-installation script subprocess returned error exit status 255
  InstallationDate: Installed on 2022-03-10 (0 days ago)
  InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1)
  PackageArchitecture: all
  Python3Details: /usr/bin/python3.8, Python 3.8.5, unpackaged
  PythonDetails: N/A
  RelatedPackageVersions:
   dpkg 1.19.7ubuntu3
   apt  2.0.4
  SourcePackage: pam
  Title: package libpam-runtime 1.3.1-5ubuntu4.3 failed to install/upgrade: installed libpam-runtime package post-installation script subprocess returned error exit status 255
  UpgradeStatus: No upgrade log present (probably fresh install)

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