[Bug 1831221] Re: do-release-upgrade fails due to package libpam0g:amd64 1.1.8-3.2ubuntu2.1

[Steve Langasek]

The error in your log is:

/build/cdebconf-Lc5sq3/cdebconf-0.198ubuntu1/src/debconf.c:241 (main):
Cannot initialize debconf frontend

cdebconf is not the default implementation of debconf in Ubuntu (debconf
is).  Furthermore, your logs show that you have cdebconf-udeb installed,
which is not intended for installation on Ubuntu systems - it is a
component of the debian-installer.  Do you know why cdebconf-udeb is
installed here?

** Changed in: pam (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1831221

Title:
  do-release-upgrade fails due to package libpam0g:amd64
  1.1.8-3.2ubuntu2.1

Status in pam package in Ubuntu:
  Incomplete

Bug description:
  While performing a release upgrade from 14.04 to 16.04, the do-
  release-upgrade process crashes, apparently due to a failure
  installing or upgrading the package libpam0g:amd64 1.1.8-3.2ubuntu2.1

  ProblemType: Package
  DistroRelease: Ubuntu 16.04
  Package: libpam0g:amd64 1.1.8-3.2ubuntu2.1
  ProcVersionSignature: Ubuntu 3.13.0-165.215-generic 3.13.11-ckt39
  Uname: Linux 3.13.0-165-generic x86_64
  NonfreeKernelModules: rr232x
  ApportVersion: 2.14.1-0ubuntu3.29
  Architecture: amd64
  Date: Fri May 31 04:35:26 2019
  DuplicateSignature: package:libpam0g:amd64:1.1.8-3.2ubuntu2.1:subprocess installed post-installation script returned error exit status 1
  ErrorMessage: subprocess installed post-installation script returned error exit status 1
  RelatedPackageVersions:
   dpkg 1.18.4ubuntu1.5
   apt  1.2.31
  SourcePackage: pam
  Title: package libpam0g:amd64 1.1.8-3.2ubuntu2.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
  UpgradeStatus: Upgraded to xenial on 2019-05-31 (0 days ago)

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