package systemd 229-3ubuntu1 [modified: usr/share/dbus-1/system-services/org.freedesktop.systemd1.service] failed to install/upgrade: package systemd is already installed and configured

[Marcos Pantelis]

got a failure message during system update.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: systemd 229-3ubuntu1 [modified: usr/share/dbus-1/system-services/org.freedesktop.systemd1.service]
ProcVersionSignature: Ubuntu 4.4.0-15.31-generic 4.4.6
Uname: Linux 4.4.0-15-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.20-0ubuntu3
AptTermLog:

AptdaemonVersion: 1.1.1+bzr982-0ubuntu14
Architecture: amd64
CrashReports: 600:0:115:146313:2016-05-11 08:00:39.639271736 -0400:2016-05-11 08:00:40.639271736 -0400:/var/crash/systemd.0.crash
Date: Wed May 11 08:00:40 2016
DuplicateSignature:
 Processing triggers for libc-bin (2.23-0ubuntu2) ...
 dpkg: error: dpkg status database is locked by another process
 dpkg: error processing package systemd (--configure):
  package systemd is already installed and configured
ErrorMessage: package systemd is already installed and configured
InstallationDate: Installed on 2016-02-15 (85 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
MachineType: Apple Inc. MacBookPro8,1
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-15-generic.efi.signed root=UUID=54a6de3f-bedd-4777-a7aa-276e01cc43d3 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1
 apt 1.2.10ubuntu1
SourcePackage: dpkg
SystemdDelta:
 [EXTENDED] /lib/systemd/system/systemd-timesyncd.service → /lib/systemd/system/systemd-timesyncd.service.d/disable-with-time-daemon.conf
 [EXTENDED] /lib/systemd/system/rc-local.service → /lib/systemd/system/rc-local.service.d/debian.conf
 [EXTENDED] /etc/systemd/system/display-manager.service → /lib/systemd/system/display-manager.service.d/xdiagnose.conf

 3 overridden configuration files found.
Title: package systemd 229-3ubuntu1 [modified: usr/share/dbus-1/system-services/org.freedesktop.systemd1.service] failed to install/upgrade: package systemd is already installed and configured
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/26/15
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBP81.88Z.0047.B2C.1510261540
dmi.board.asset.tag: Base Board Asset Tag#
dmi.board.name: Mac-94245B3640C91C81
dmi.board.vendor: Apple Inc.
dmi.board.version: MacBookPro8,1
dmi.chassis.type: 10
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-94245B3640C91C81
dmi.modalias: dmi:bvnAppleInc.:bvrMBP81.88Z.0047.B2C.1510261540:bd10/26/15:svnAppleInc.:pnMacBookPro8,1:pvr1.0:rvnAppleInc.:rnMac-94245B3640C91C81:rvrMacBookPro8,1:cvnAppleInc.:ct10:cvrMac-94245B3640C91C81:
dmi.product.name: MacBookPro8,1
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.