package systemd 229-4ubuntu6 failed to install/upgrade: subprocess installed pre-removal script returned error exit status 2

[Connor Imes]

systemd failed to install during upgrade, had to run apt-get install -f before reboot.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: systemd 229-4ubuntu6
ProcVersionSignature: Ubuntu 4.4.0-22.40-generic 4.4.8
Uname: Linux 4.4.0-22-generic x86_64
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
Date: Tue May 24 22:20:35 2016
DuplicateSignature:
 De-configuring udev (225-1ubuntu9.1) ...
 dpkg: error processing archive /var/cache/apt/archives/systemd_229-4ubuntu6_amd64.deb (--unpack):
  subprocess installed pre-removal script returned error exit status 2
ErrorMessage: subprocess installed pre-removal script returned error exit status 2
InstallationDate: Installed on 2015-06-15 (344 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
MachineType: LENOVO 20BSCTO1WW
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-22-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.10ubuntu1
SourcePackage: systemd
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 229-4ubuntu6 failed to install/upgrade: subprocess installed pre-removal script returned error exit status 2
UpgradeStatus: Upgraded to xenial on 2016-05-25 (0 days ago)
dmi.bios.date: 03/12/2015
dmi.bios.vendor: LENOVO
dmi.bios.version: N14ET28W (1.06 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20BSCTO1WW
dmi.board.vendor: LENOVO
dmi.board.version: SDK0E50510 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias: dmi:bvnLENOVO:bvrN14ET28W(1.06):bd03/12/2015:svnLENOVO:pn20BSCTO1WW:pvrThinkPadX1Carbon3rd:rvnLENOVO:rn20BSCTO1WW:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.name: 20BSCTO1WW
dmi.product.version: ThinkPad X1 Carbon 3rd
dmi.sys.vendor: LENOVO