Public bug reported: I don't know about this error
ProblemType: Package DistroRelease: Ubuntu 16.04 Package: libpam-systemd:amd64 229-4ubuntu8 ProcVersionSignature: Ubuntu 4.4.0-36.55-generic 4.4.16 Uname: Linux 4.4.0-36-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.1 AptdaemonVersion: 1.1.1+bzr982-0ubuntu14 Architecture: amd64 CrashReports: 640:0:116:552500:2016-09-16 09:26:16.835014581 +0400:2016-09-16 09:26:17.835014581 +0400:/var/crash/udev.0.crash 644:0:116:0:2016-09-16 09:20:28.332574553 +0400:2016-09-16 09:20:28.332574553 +0400:/var/crash/_usr_bin_unattended-upgrade.0.upload 600:0:116:110721:2016-09-16 09:25:52.272367000 +0400:2016-09-16 09:25:53.272367000 +0400:/var/crash/libpam-systemd:amd64.0.crash 600:109:116:0:2016-09-16 09:20:30.456597003 +0400:2016-09-16 09:20:30.456597003 +0400:/var/crash/_usr_bin_unattended-upgrade.0.uploaded 640:0:116:38267:2016-09-16 09:20:26.112574577 +0400:2016-09-16 09:20:27.112574577 +0400:/var/crash/_usr_bin_unattended-upgrade.0.crash Date: Fri Sep 16 09:25:53 2016 DuplicateSignature: package:libpam-systemd:amd64:229-4ubuntu8 Processing triggers for man-db (2.7.5-1) ... 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 2016-06-30 (77 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) RelatedPackageVersions: dpkg 1.18.4ubuntu1.1 apt 1.2.12~ubuntu16.04.1 SourcePackage: systemd Title: package libpam-systemd:amd64 229-4ubuntu8 failed to install/upgrade: package libpam-systemd:amd64 is already installed and configured UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: systemd (Ubuntu) Importance: Undecided Status: New ** Tags: already-installed amd64 apport-package xenial -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1624218 Title: package libpam-systemd:amd64 229-4ubuntu8 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/systemd/+bug/1624218/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs