[Bug 1570310] Re: package systemd 229-4ubuntu4 failed to install/upgrade: subprocess installed pre-removal script returned error exit status 2

[Martin Pitt]

systemd.prerm does not do much really, so I figure it's one of the dpkg-
maintscript-helper mv_conffile calls that failed. Can you please enable
some debugging with

  sudo sed -i '2 s/^.*/set -x/' /var/lib/dpkg/info/systemd.prerm
  sudo apt-get install --reinstall systemd

and see if you still get this error? Please copy&paste the entire
output.

** Changed in: systemd (Ubuntu)
       Status: New => Incomplete

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Title:
  package systemd 229-4ubuntu4 failed to install/upgrade: subprocess
  installed pre-removal script returned error exit status 2

Status in systemd package in Ubuntu:
  Incomplete

Bug description:
  I was upgrading from 15.10 to 16.04 when this error occur.

  ProblemType: Package
  DistroRelease: Ubuntu 16.04
  Package: systemd 229-4ubuntu4
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Uname: Linux 4.4.0-18-generic x86_64
  ApportVersion: 2.20.1-0ubuntu1
  Architecture: amd64
  Date: Wed Apr 13 21:41:53 2016
  DpkgTerminalLog:
   Preparing to unpack .../systemd_229-4ubuntu4_amd64.deb ...
   De-configuring udev (225-1ubuntu9.1) ...
   dpkg: error processing archive /var/cache/apt/archives/systemd_229-4ubuntu4_amd64.deb (--unpack):
    subprocess installed pre-removal script returned error exit status 2
  DuplicateSignature:
   De-configuring udev (225-1ubuntu9.1) ...
   dpkg: error processing archive /var/cache/apt/archives/systemd_229-4ubuntu4_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 2016-01-08 (96 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  Lsusb:
   Bus 002 Device 002: ID 0781:5583 SanDisk Corp. 
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 04f2:b483 Chicony Electronics Co., Ltd 
   Bus 001 Device 002: ID 046d:c52b Logitech, Inc. Unifying Receiver
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK COMPUTER INC. X455LJ
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-18-generic root=UUID=70fa96eb-e0d8-4e65-b049-9cb150759b40 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   dpkg 1.18.4ubuntu1
   apt  1.2.10
  SourcePackage: systemd
  SystemdDelta:
   [EXTENDED]   /etc/systemd/system/display-manager.service → /lib/systemd/system/display-manager.service.d/xdiagnose.conf
   [EXTENDED]   /lib/systemd/system/rc-local.service → /lib/systemd/system/rc-local.service.d/debian.conf
   [EXTENDED]   /lib/systemd/system/systemd-timesyncd.service → /lib/systemd/system/systemd-timesyncd.service.d/disable-with-time-daemon.conf
   
   3 overridden configuration files found.
  Title: package systemd 229-4ubuntu4 failed to install/upgrade: subprocess installed pre-removal script returned error exit status 2
  UpgradeStatus: Upgraded to xenial on 2016-04-13 (0 days ago)
  dmi.bios.date: 04/22/2015
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: X455LJ.203
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: X455LJ
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: ATN12345678901234567
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX455LJ.203:bd04/22/2015:svnASUSTeKCOMPUTERINC.:pnX455LJ:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX455LJ:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: X455LJ
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.

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