[Bug 927993] Re: distribution upgrade from lucid to precise failed with : package dpkg is already installed and configured

[Michael Vogt]

I switched the auto-upgrade-tester over to dry-run mode with
apt_pkg.config.set("debug::pkgDpkgPM", "1") and it shows me:

 /usr/bin/dpkg --force-overwrite --status-fd 222 --unpack --auto-deconfigure /var/cache/apt/archives/python-cairo_1.8.8-1ubuntu3_amd64.deb /var/cache/apt/archives/libcurl3-gnutls_7.22.0-3ubuntu2_amd64.deb /var/cache/apt/archives/python-pycurl_7.19.0-4ubuntu3_amd64.deb /var/cache/apt/archives/dpkg_1.16.1.2ubuntu5_amd64.deb ^M^M
 /usr/bin/dpkg --force-overwrite --status-fd 224 --configure dpkg ^M^M

That does actually look ok

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Title:
  distribution upgrade from lucid to precise failed with :  package dpkg
  is already installed and configured

Status in “apt” package in Ubuntu:
  Triaged
Status in “apt” source package in Precise:
  Triaged

Bug description:
  At the same time I happened to receive a cron crash which I reported
  as bug 927923.

  -rw-r--r-- 1 ubuntu ubuntu 493K 2012-02-06 13:34 dpkg.0.crash
  -rw------- 1 root   root   150K 2012-02-06 13:34 _usr_sbin_cron.0.crash

  The error message I received from dpkg looks similar to bug 541595.

  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: update-manager (not installed)
  ProcVersionSignature: Ubuntu 2.6.32-38.83-server 2.6.32.52+drm33.21
  Uname: Linux 2.6.32-38-server x86_64
  Architecture: amd64
  Date: Mon Feb  6 17:33:25 2012
  InstallationMedia: Ubuntu-Server 10.04.3 LTS "Lucid Lynx" - Release amd64 (20110719.2)
  ProcEnviron:
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: update-manager

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