dpkg trigger loop betwen lubuntu-software-center and libc-bin

[Jim Dunn]

1) installed lubuntu 15.10 beta1
2) apt-get purge network-manager-gnome && apt-get install wicd
3) apt-get update && apt-get upgrade

then got systemd error

ProblemType: Package
DistroRelease: Ubuntu 15.10
Package: systemd 225-1ubuntu4
ProcVersionSignature: Ubuntu 4.1.0-3.3-generic 4.1.3
Uname: Linux 4.1.0-3-generic x86_64
ApportVersion: 2.18.1-0ubuntu1
Architecture: amd64
Date: Tue Sep 15 11:35:51 2015
DuplicateSignature: package:systemd:225-1ubuntu4:triggers looping, abandoned
ErrorMessage: triggers looping, abandoned
InstallationDate: Installed on 2015-09-15 (0 days ago)
InstallationMedia: Lubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20150825)
MachineType: Dell Inc. Latitude E6520
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.1.0-3-generic root=/dev/mapper/lubuntu--vg-root ro quiet splash vt.handoff=7
RelatedPackageVersions:
 dpkg 1.18.2ubuntu4
 apt 1.0.9.10ubuntu6
SourcePackage: systemd
Title: package systemd 225-1ubuntu4 failed to install/upgrade: triggers looping, abandoned
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/14/2013
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A19
dmi.board.name: 0J4TFW
dmi.board.vendor: Dell Inc.
dmi.board.version: A01
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA19:bd11/14/2013:svnDellInc.:pnLatitudeE6520:pvr01:rvnDellInc.:rn0J4TFW:rvrA01:cvnDellInc.:ct9:cvr:
dmi.product.name: Latitude E6520
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.

[Martin Pitt (pitti)]

dpkg: cycle found while processing triggers:
 chain of packages whose triggers are or may be responsible:
  lubuntu-software-center -> libc-bin

This looks similar to bug 1496119, where lubuntu-software-center is the common factor.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.