[Bug 579647] Re: Dist upgrade from 9.10 to 10.04 LTS fails: apt post-installation failure - getent returns a non-existent admin user when external authentication is used (i.e LDAP)

[Ubuntu QA's Bug Bot]

** Tags added: testcase

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Title:
  Dist upgrade from 9.10 to 10.04 LTS fails: apt post-installation
  failure - getent returns a non-existent admin user when external
  authentication is used (i.e LDAP)

Status in “apt” package in Ubuntu:
  Invalid
Status in “apt” source package in Lucid:
  Fix Released

Bug description:
  TEST CASE:
  This bug is only triggered on e.g. LDAP systems. So we need a regression test to ensure that nothing breaks with it from the
  SRU testers:
  1. enabled karmic-proposed
  2. setup a proxy
  3. run update-manager -d
  4. upgrade to lucid
  5. verify that nothing breaks

  - If you have a setup with external authentication, please test the fix in luicd-proposed.
  - If you do not have a setup with external authentication, add a non-existent user as 1rst member of the admin group. The /etc/group file must have an entry looking like:
  admin:x:111:nonexistentuser,adminuser

  **WARNING** do not remove your admin user name from the admin group.

  =====
  Binary package hint: update-manager

  I tried to upgrade my laptop (Acer WLMi5003), running Ubuntu 9.10 to Ubuntu 10.10. I tried to this two times but both times upgrade fails with following information:
  ___________________________________________________________________
  Could not install the upgrades

  The upgrade is now aborted. Your system could be in an unusable state.
  A recovery will run now (dpkg --configure -a).

  Please report this bug against the 'update-manager' package and include the files in /var/log/dist-upgrade/ in the bug report.
  E:Sub-process /usr/bin/dpkg returned an error code (1), E:Sub-process /usr/bin/dpkg returned an error code (1)
  ____________________________________________________________________

  All files in the above mentioned directory are in the attached file,
  upgradeLogs.tar.bz2

  Note1: My upgrade path is: 8.10-->9.04-->9.10-->10.10LTS

  Br Pekka

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