[Bug 1308262] Re: libpam-systemd postinstall stuck on upgrade

[Steve Conklin]

For anyone else who hits this bug on Trusty, here's how to resolve it:

Kill the update that's in process
$ sudo rm /var/lib/dpkg/lock
$ sudo dpkg --configure -a

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https://bugs.launchpad.net/bugs/1308262

Title:
  libpam-systemd postinstall stuck on upgrade

Status in “systemd” package in Ubuntu:
  Fix Released

Bug description:
  Just did an "apt-get update && apt-get dist-upgrade" on my trusty
  laptop. It's been stuck in the libpam-systemd postinst for 15-20
  minutes:

  Recent output from dist-upgrade:

  Unpacking xpra (0.12.3+dfsg-1ubuntu1) over (0.12.2+dfsg-1ubuntu1) ...
  Processing triggers for man-db (2.6.7.1-1) ...
  Processing triggers for ureadahead (0.100.0-16) ...
  ureadahead will be reprofiled on next reboot
  Processing triggers for gnome-menus (3.10.1-0ubuntu2) ...
  Processing triggers for desktop-file-utils (0.22-1ubuntu1) ...
  Processing triggers for mime-support (3.54ubuntu1) ...
  Processing triggers for hicolor-icon-theme (0.13-1) ...
  Setting up libcgmanager0:i386 (0.24-0ubuntu5) ...
  Setting up libcgmanager0:amd64 (0.24-0ubuntu5) ...
  Setting up libudev1:amd64 (204-5ubuntu20) ...
  Setting up libudev1:i386 (204-5ubuntu20) ...
  Setting up udev (204-5ubuntu20) ...
  udev stop/waiting
  udev start/running, process 30898
  Removing 'diversion of /bin/udevadm to /bin/udevadm.upgrade by fake-udev'
  update-initramfs: deferring update (trigger activated)
  Setting up libsystemd-daemon0:amd64 (204-5ubuntu20) ...
  Setting up systemd-services (204-5ubuntu20) ...
  Setting up libpam-systemd:amd64 (204-5ubuntu20) ...
  Installing new version of config file /etc/init/systemd-logind.conf ...
  [stuck here]

  Relevant processes running:

       |         |         |      |      |-bash---sudo---apt-get---dpkg
  ---libpam-systemd:---invoke-rc.d---start

  root     28517 17005  0 16:14 pts/26   00:00:00 sudo apt-get dist-upgrade
  root     28579 28517  3 16:14 pts/26   00:00:56 apt-get dist-upgrade
  root     30803 28579  0 16:15 pts/28   00:00:00 /usr/bin/dpkg --status-fd 69 --configure libcgmanager0:i386 libcgmanager0:amd64 libudev1:amd64 libudev1:i386 udev:amd64 libsystemd-daemon0:amd64 systemd-services:amd64 libpam-systemd:amd64 libsystemd-login0:amd64 chromium-codecs-ffmpeg-extra:amd64 chromium-browser:amd64 chromium-browser-l10n:all libgudev-1.0-0:amd64 cgmanager:amd64 liblxc1:amd64 python3-lxc:amd64 lxc:amd64 lxc-templates:amd64 libva1:amd64 libva-x11-1:amd64 libsystemd-journal0:amd64 ubuntu-minimal:amd64 gir1.2-gudev-1.0:amd64 libxenstore3.0:amd64 libxen-4.4:amd64 python-qt4:amd64 python-qt4-dbus:amd64 xpra:amd64
  root     30928 30803  0 16:15 pts/28   00:00:00 /bin/sh /var/lib/dpkg/info/libpam-systemd:amd64.postinst configure 204-5ubuntu19
  root     30942 30928  0 16:15 pts/28   00:00:00 /bin/sh /usr/sbin/invoke-rc.d systemd-logind start
  root     30984 30942  0 16:15 pts/28   00:00:00 start systemd-logind

  System info:

  Description:    Ubuntu 14.04 LTS
  Release:        14.04

  libpam-systemd:
    Installed: 204-5ubuntu20
    Candidate: 204-5ubuntu20
    Version table:
   *** 204-5ubuntu20 0
          500 http://us.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
          100 /var/lib/dpkg/status

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