package systemd 225-1ubuntu9.1 [modified: usr/share/dbus-1/system-services/org.freedesktop.systemd1.service] failed to install/upgrade: subproces pre-removal script geïnstalleerd gaf een foutwaarde 2 terug

[heppe]

while upgrading from 15:10 to 16:04 (with CLi command do-upgrade-release): problems with installation of systemd.
upgrade stopped.
After apt-get install -f
I could continue with apt-get upgrade.
Upgrade is still running. I hope there won't be any errors.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: systemd 225-1ubuntu9.1 [modified: usr/share/dbus-1/system-services/org.freedesktop.systemd1.service]
ProcVersionSignature: Ubuntu 4.2.0-35.40-generic 4.2.8-ckt5
Uname: Linux 4.2.0-35-generic x86_64
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
Date: Thu Apr 21 20:57:03 2016
DpkgTerminalLog:
 Uitpakken van .../systemd_229-4ubuntu4_amd64.deb wordt voorbereid...
 Bezig met de-configureren van udev (225-1ubuntu9.1) ...
 dpkg: fout bij verwerken van archief /var/cache/apt/archives/systemd_229-4ubuntu4_amd64.deb (--unpack):
  subproces pre-removal script geïnstalleerd gaf een foutwaarde 2 terug
DuplicateSignature: package:systemd:225-1ubuntu9.1 [modified: usr/share/dbus-1/system-services/org.freedesktop.systemd1.service]:subproces pre-removal script geïnstalleerd gaf een foutwaarde 2 terug
ErrorMessage: subproces pre-removal script geïnstalleerd gaf een foutwaarde 2 terug
InstallationDate: Installed on 2015-05-09 (348 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 004: ID 5986:024b Acer, Inc
 Bus 001 Device 003: ID 058f:6254 Alcor Micro Corp. USB Hub
 Bus 001 Device 002: ID 8087:07dc Intel Corp.
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Notebook W54_W94_W955TU,-T,-C
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-35-generic root=UUID=927a4177-9582-4e28-a753-517c31240263 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 dpkg 1.18.2ubuntu5.1
 apt 1.0.10.2ubuntu2
SourcePackage: systemd
Title: package systemd 225-1ubuntu9.1 [modified: usr/share/dbus-1/system-services/org.freedesktop.systemd1.service] failed to install/upgrade: subproces pre-removal script geïnstalleerd gaf een foutwaarde 2 terug
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
UpgradeStatus: Upgraded to xenial on 2016-04-21 (0 days ago)
dmi.bios.date: 01/23/2015
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 5.6.5
dmi.board.asset.tag: Tag 12345
dmi.board.name: W54_W94_W955TU,-T,-C
dmi.board.vendor: Notebook
dmi.board.version: V1.0
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 10
dmi.chassis.vendor: Notebook
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr5.6.5:bd01/23/2015:svnNotebook:pnW54_W94_W955TU,-T,-C:pvrNotApplicable:rvnNotebook:rnW54_W94_W955TU,-T,-C:rvrV1.0:cvnNotebook:ct10:cvrToBeFilledByO.E.M.:
dmi.product.name: W54_W94_W955TU,-T,-C
dmi.product.version: Not Applicable
dmi.sys.vendor: Notebook