package software-center 13.10-0ubuntu4.1 failed to install/upgrade: triggers looping, abandoned

[Franklin Soares]

during upgrade

ProblemType: Package
DistroRelease: Ubuntu 15.04
Package: software-center 13.10-0ubuntu4.1
ProcVersionSignature: Ubuntu 3.16.0-26.34-generic 3.16.7-ckt1
Uname: Linux 3.16.0-26-generic x86_64
ApportVersion: 2.14.7-0ubuntu10
Architecture: amd64
Date: Tue Dec 2 10:52:46 2014
DuplicateSignature: package:software-center:13.10-0ubuntu4.1:triggers looping, abandoned
ErrorMessage: triggers looping, abandoned
InstallationDate: Installed on 2014-11-20 (12 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
PackageArchitecture: all
SourcePackage: software-center
Title: package software-center 13.10-0ubuntu4.1 failed to install/upgrade: triggers looping, abandoned
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

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

[David Pires (slickymaster)]

On a 32 bit VM system.

....
Installing new version of config file /etc/dbus-1/system.d/org.freedesktop.machine1.conf ...
Installing new version of config file /etc/dbus-1/system.d/org.freedesktop.systemd1.conf ...
Installing new version of config file /etc/pam.d/systemd-user ...
Installing new version of config file /etc/systemd/logind.conf ...
Installing new version of config file /etc/systemd/resolved.conf ...
Installing new version of config file /etc/systemd/timesyncd.conf ...
Setting up libgudev-1.0-0:i386 (1:217-2ubuntu1) ...
Setting up libsystemd-daemon0:i386 (217-2ubuntu1) ...
Setting up libsystemd-login0:i386 (217-2ubuntu1) ...
Setting up libtdb1:i386 (1.3.2-1) ...
Setting up xfce4-session (4.11.1-0ubuntu1) ...
Installing new version of config file /etc/xdg/autostart/xscreensaver.desktop ...
Installing new version of config file /etc/xdg/xfce4/xinitrc ...
Setting up libapparmor-perl (2.8.98-0ubuntu4) ...
Setting up apparmor (2.8.98-0ubuntu4) ...
update-rc.d: warning: start and stop actions are no longer supported; falling back to defaults
Skipping profile in /etc/apparmor.d/disable: usr.bin.firefox
Skipping profile in /etc/apparmor.d/disable: usr.sbin.rsyslogd
Files /var/lib/dpkg/info/apparmor.md5sums and /var/lib/apparmor/profiles/.apparmor.md5sums differ
Setting up ppp (2.4.5-5.1ubuntu5) ...
update-rc.d: warning: start and stop actions are no longer supported; falling back to defaults
Setting up gir1.2-gudev-1.0 (1:217-2ubuntu1) ...
Setting up xfce4-power-manager-data (1.4.2-0ubuntu2) ...
Setting up xfce4-power-manager (1.4.2-0ubuntu2) ...
Setting up xfce4-power-manager-plugins (1.4.2-0ubuntu2) ...
Processing triggers for dbus (1.8.8-2ubuntu2) ...
Setting up libpam-systemd:i386 (217-2ubuntu1) ...
Setting up language-pack-en (1:15.04+20141201) ...
dpkg: cycle found while processing triggers:
 chain of packages whose triggers are or may be responsible:
  software-center -> software-center
 packages' pending triggers which are or may be unresolvable:
  software-center: /usr/share/locale-langpack
  shared-mime-info: /usr/share/mime/packages
  libc-bin: ldconfig
  initramfs-tools: update-initramfs
  gconf2: /usr/share/GConf/gsettings
dpkg: error processing package software-center (--configure):
 triggers looping, abandoned
....
Processing triggers for libc-bin (2.19-13ubuntu2) ...
Processing triggers for initramfs-tools (0.103ubuntu8) ...
update-initramfs: Generating /boot/initrd.img-3.16.0-25-generic
Errors were encountered while processing:
 software-center
E: Sub-process /usr/bin/dpkg returned an error code (1)

[David Pires (slickymaster)]

Running sudo apt-get install -f seemed to resolve it.

~$ sudo apt-get install -f
[sudo] password for slickymaster:
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Processing triggers for gconf2 (3.2.6-3ubuntu1) ...
Setting up software-center (13.10-0ubuntu4.1) ...
Updating software catalog...this may take a moment.
INFO:softwarecenter.db.pkginfo_impl.aptcache:aptcache.open()
Software catalog update was successful.
~$