Public bug reported: Just said to report this error. So I'm sending the info along.
ProblemType: Package DistroRelease: Ubuntu 16.04 Package: libpam-systemd:amd64 229-4ubuntu21 ProcVersionSignature: Ubuntu 4.4.0-98.121-generic 4.4.90 Uname: Linux 4.4.0-98-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.10 AptdaemonVersion: 1.1.1+bzr982-0ubuntu14 Architecture: amd64 Date: Tue Nov 14 17:39:04 2017 DuplicateSignature: package:libpam-systemd:amd64:229-4ubuntu21 Processing triggers for dbus (1.10.6-1ubuntu3.3) ... dpkg: error processing package udev (--configure): package udev is already installed and configured ErrorMessage: package libpam-systemd:amd64 is already installed and configured InstallationDate: Installed on 2016-12-16 (334 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) RelatedPackageVersions: dpkg 1.18.4ubuntu1.2 apt 1.2.24 SourcePackage: dpkg Title: package libpam-systemd:amd64 229-4ubuntu21 failed to install/upgrade: package libpam-systemd:amd64 is already installed and configured UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: dpkg (Ubuntu) Importance: Undecided Status: New ** Tags: already-installed amd64 apport-package xenial -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1732558 Title: package libpam-systemd:amd64 229-4ubuntu21 failed to install/upgrade: package libpam-systemd:amd64 is already installed and configured To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dpkg/+bug/1732558/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs