[Bug 1313712] Re: Trusty's libselinux1 is causes issues with Precise's upstart during dist-upgrade

[Dimitri John Ledkov]

if [ "$1" = "configure" ]; then
       # Restart init. If it fails, there is nothing we can do, so                                                                                                                                                
      # just ignore the error (NOTE: Borrowed from libc6.postinst)                                                                                                                                               
      telinit u 2>/dev/null || true ; sleep 1
 9fi

ph, yes, libselinux postinst is not upgrades from precise friendly.

** Also affects: libselinux (Ubuntu Trusty)
   Importance: Undecided
       Status: New

** Also affects: libselinux (Ubuntu Utopic)
   Importance: Undecided
       Status: New

** Changed in: libselinux (Ubuntu Trusty)
       Status: New => Confirmed

** Changed in: libselinux (Ubuntu Trusty)
       Status: Confirmed => Triaged

** Changed in: libselinux (Ubuntu Utopic)
       Status: New => Triaged

** Changed in: libselinux (Ubuntu Trusty)
   Importance: Undecided => High

** Changed in: libselinux (Ubuntu Utopic)
   Importance: Undecided => High

** Changed in: libselinux (Ubuntu Utopic)
     Assignee: (unassigned) => Dimitri John Ledkov (xnox)

** Changed in: libselinux (Ubuntu Trusty)
     Assignee: (unassigned) => Dimitri John Ledkov (xnox)

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https://bugs.launchpad.net/bugs/1313712

Title:
  Trusty's libselinux1 is causes issues with Precise's upstart during
  dist-upgrade

Status in “libselinux” package in Ubuntu:
  Triaged
Status in “libselinux” source package in Trusty:
  Triaged
Status in “libselinux” source package in Utopic:
  Triaged

Bug description:
  Hi everyone,

  During troubleshooting of bug http://pad.lv/1303891 I've also
  discovered that Precise's upstart version doesn't work with Trusty's
  libselinux1. This is a major issue during a dist-upgrade from Precise
  to Trusty as upstart is severely affected by this and looses track of
  service PIDs which prevents service reloads.

  Can someone add a Breaks for Precise's upstart version to Trusty's
  libselinux1 debian/control file?

  Reproduction instructions:
  Install Ubuntu 12.04.4.

  $ sudo apt-get update -qq && sudo apt-get dist-upgrade -qqy
  <no output; no updates>

  $ initctl list
  avahi-daemon start/running, process 765
  ...

  $ sudo sed -i 's/precise/trusty/g' /etc/apt/sources.list

  $ sudo apt-get update -qq
  <no ouput; no errors>

  $ sudo apt-get install libselinux1 -y
  ...

  New dmesg lines:
  [ 256.032898] init: Re-executing /sbin/init

  New syslog lines:
  Apr 23 14:51:40 test upstart-socket-bridge[1090]: Disconnected from Upstart
  Apr 23 14:51:40 test upstart-udev-bridge[595]: Disconnected from Upstart

  $ initctl list
  avahi-daemon stop/waiting
  ...

  Upstart lost track of service PIDs. Commands like 'initctl reload
  dbus' will fail.

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