Bug#781278: multi-arch packages cannot be installed due to dpkg wrongly detecting them as already installed

[Alberto Salvia Novella]

Package: dpkg
Version: 1.17.13
Severity: important

As reported in <https://bugs.launchpad.net/ubuntu/+source/dpkg/+bug/1407757>:

HOW TO REPRODUCE:
- Install an affected package.

EXPECTED BEHAVIOUR:
- The package to be installed.

REAL BEHAVIOUR:



ProblemType: Package
DistroRelease: Ubuntu 14.04
ProcVersionSignature: Ubuntu 3.13.0-43.72-generic 3.13.11.11
Uname: Linux 3.13.0-43-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.6
AptdaemonVersion: 1.1.1-1ubuntu5.1
Architecture: amd64
CrashReports:

Date: Mon Jan 5 12:17:10 2015

InstallationDate: Installed on 2015-01-04 (1 days ago)

SourcePackage: dpkg

UpgradeStatus: No upgrade log present (probably fresh install)

- The package cannot be installed due to dpkg wrongly detecting them as already installed. 640:0:0:1458151:2015-01-05 12:18:11.086621522 -0600:2015-01-05 12:18:12.086621522 -0600:/var/crash/libnss3:amd64.0.crash 600:0:0:217380:2015-01-05 12:17:09.359944581 -0600:2015-01-05 12:17:10.359944581 -0600:/var/crash/libpam-systemd:amd64.0.crash 644:0:0:0:2015-01-05 12:18:13.122599379 -0600:2015-01-05 12:18:13.122599379 -0600:/var/crash/libnss3:amd64.0.upload 600:0:0:217372:2015-01-05 12:17:10.375944347 -0600:2015-01-05 12:17:10.363944604 -0600:/var/crash/libnss3-nssdb.0.crash DuplicateSignature: package:libpam-systemd:amd64:204-5ubuntu20.9:package libpam-systemd:amd64 is already installed and configured ErrorMessage: package libpam-systemd:amd64 is already installed and configured InstallationMedia: Mythbuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) Title: package libpam-systemd:amd64 204-5ubuntu20.9 failed to install/upgrade: package libpam-systemd:amd64 is already installed and configured

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