Public bug reported: I believe this happened when installing the GUI for Clamav.
ProblemType: Package DistroRelease: Ubuntu 16.04 Package: linux-image-4.8.0-54-generic 4.8.0-54.57~16.04.1 ProcVersionSignature: Ubuntu 4.8.0-54.57~16.04.1-generic 4.8.17 Uname: Linux 4.8.0-54-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.5 AptdaemonVersion: 1.1.1+bzr982-0ubuntu14 Architecture: amd64 Date: Wed Jun 7 12:36:40 2017 DuplicateSignature: package:linux-image-4.8.0-54-generic:4.8.0-54.57~16.04.1 Processing triggers for mime-support (3.59ubuntu1) ... dpkg: error processing package linux-image-4.8.0-54-generic (--configure): package linux-image-4.8.0-54-generic is already installed and configured ErrorMessage: package linux-image-4.8.0-54-generic is already installed and configured InstallationDate: Installed on 2017-04-30 (38 days ago) InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.2) RelatedPackageVersions: dpkg 1.18.4ubuntu1.2 apt 1.2.20 SourcePackage: dpkg Title: package linux-image-4.8.0-54-generic 4.8.0-54.57~16.04.1 failed to install/upgrade: package linux-image-4.8.0-54-generic 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/1696629 Title: package linux-image-4.8.0-54-generic 4.8.0-54.57~16.04.1 failed to install/upgrade: package linux-image-4.8.0-54-generic is already installed and configured To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dpkg/+bug/1696629/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs