[Bug 878078] Re: do-release-upgrade does not properly lock dpkg database

[Pedro Villavicencio]

*** This bug is a duplicate of bug 349469 ***
    https://bugs.launchpad.net/bugs/349469

Thank you for taking the time to report this bug and helping to make
Ubuntu better. This particular bug has already been reported and is a
duplicate of bug 349469, so it is being marked as such. Please look at
the other bug report to see if there is any missing information that you
can provide, or to see if there is a workaround for the bug.
Additionally, any further discussion regarding the bug should occur in
the other report.  Please continue to report any other bugs you may
find.

** This bug has been marked a duplicate of bug 349469
   debconf: DbDriver "config": /var/cache/debconf/config.dat is locked by another process: Resource temporarily unavailable

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https://bugs.launchpad.net/bugs/878078

Title:
  do-release-upgrade does not properly lock dpkg database

Status in “man-db” package in Ubuntu:
  New

Bug description:
  When upgrading the system to 11.10, various processes try to access the dpkg database while upgrade is running. These include unattended-upgrades, apticron and update-manager. It happens from time to time, that these processes will gain a lock on the database, forcing the main upgrade process to abort.
  I would expect either the main upgrade process to wait until the database gets released OR to properly lock it so no other process can access it while the upgrade is running.

  ProblemType: Package
  DistroRelease: Ubuntu 11.04
  Package: man-db 2.5.9-4
  ProcVersionSignature: Ubuntu 2.6.38-11.48-powerpc 2.6.38.8
  Uname: Linux 2.6.38-11-powerpc ppc
  Architecture: powerpc
  Date: Wed Oct 19 11:02:04 2011
  ErrorMessage: ErrorMessage: Unterprozess installiertes post-installation-Skript gab den Fehlerwert 1 zurück
  SourcePackage: man-db
  Title: package man-db 2.5.9-4 failed to install/upgrade: ErrorMessage: Unterprozess installiertes post-installation-Skript gab den Fehlerwert 1 zurück
  UpgradeStatus: Upgraded to natty on 2011-10-19 (0 days ago)

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