[Bug 1264887] [NEW] After upgrade 12.04 -> 14.04 there was no display manager (kdm or lightdm)

[Nils Kassube]

Public bug reported:

This Kubuntu machine had KDM installed before the upgrade from 12.04 to
14.04. After the upgrade there was no display manager left, i.e. kdm was
no longer installed and it wasn't replaced by lightdm like it happened
on another machine with a fresh Kubuntu 12.04 system.

The upgrade should either keep KDM or replace it by lightdm, but it
should not leave the system in a state without display manager.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: ubuntu-release-upgrader-core 1:0.209
ProcVersionSignature: Ubuntu 3.12.0-7.15-generic 3.12.4
Uname: Linux 3.12.0-7-generic x86_64
ApportVersion: 2.12.7-0ubuntu3
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: KDE
Date: Sun Dec 29 22:35:03 2013
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
Symptom: ubuntu-release-upgrader
UpgradeStatus: Upgraded to trusty on 2013-12-29 (0 days ago)
VarLogDistupgradeTermlog:

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug dist-upgrade trusty

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https://bugs.launchpad.net/bugs/1264887

Title:
  After upgrade 12.04 -> 14.04 there was no display manager (kdm or
  lightdm)

Status in “ubuntu-release-upgrader” package in Ubuntu:
  New

Bug description:
  This Kubuntu machine had KDM installed before the upgrade from 12.04
  to 14.04. After the upgrade there was no display manager left, i.e.
  kdm was no longer installed and it wasn't replaced by lightdm like it
  happened on another machine with a fresh Kubuntu 12.04 system.

  The upgrade should either keep KDM or replace it by lightdm, but it
  should not leave the system in a state without display manager.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: ubuntu-release-upgrader-core 1:0.209
  ProcVersionSignature: Ubuntu 3.12.0-7.15-generic 3.12.4
  Uname: Linux 3.12.0-7-generic x86_64
  ApportVersion: 2.12.7-0ubuntu3
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: KDE
  Date: Sun Dec 29 22:35:03 2013
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  Symptom: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to trusty on 2013-12-29 (0 days ago)
  VarLogDistupgradeTermlog:

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