[Bug 936870] Re: unattended upgrade failing due to incorrectly detected conffile prompt due to "newconffile" line

[Clint Byrum]

Hello Tim, or anyone else affected,

Accepted unattended-upgrades into precise-proposed. The package will
build now and be available at http://launchpad.net/ubuntu/+source
/unattended-upgrades/0.76ubuntu1 in a few hours, and then in the
-proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to
enable and use -proposed.  Your feedback will aid us getting this update
out to other Ubuntu users.

If this package fixes the bug for you, please change the bug tag from
verification-needed to verification-done.  If it does not, change the
tag to verification-failed.  In either case, details of your testing
will help us make a better decision.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance!

** Changed in: unattended-upgrades (Ubuntu Precise)
       Status: In Progress => Fix Committed

** Tags added: verification-needed

** Changed in: unattended-upgrades (Ubuntu Lucid)
       Status: In Progress => Fix Committed

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https://bugs.launchpad.net/bugs/936870

Title:
  unattended upgrade failing due to incorrectly detected conffile prompt
  due to "newconffile" line

Status in “unattended-upgrades” package in Ubuntu:
  Fix Released
Status in “unattended-upgrades” source package in Lucid:
  Fix Committed
Status in “unattended-upgrades” source package in Precise:
  Fix Committed

Bug description:
  [Impact]
  It is possible for unattended-upgrade to be unsuccessful when encountering some packages and conffiles in them.  However, manual installation of the packages is possible without encountering a conffile prompt.

  [Test Case]
  A specific package which creates this situation has not been found so a regression test of installing Precise / Lucid, then instal ling unattended-upgrades and running it manually (unattended-upgrade --debug) should be sufficient.

  [Regression Potential]
  This fix has been in quantal since June 2012 with no regressions reported.

  On severa hundredl of our Ubuntu machines, we have unattended upgrades
  active.  Over the weekend, this started reporting on all machines with
  dhcpcd installed that it could not upgrade that package due to a
  conffile prompt.  This looks very similar to #773007  and #336558,
  both of which are marked as fixed.

  On one of the machines, I've run unattended-upgrades --debug, and
  attached the output below.  The MD5 sums seem to match (which is a
  relief - I didn't think I was modifying these files), so I don't know
  why the conffile prompt is being detected.  If I run apt-get safe-
  upgrade on its own, it successfully upgrades the package with no
  prompting.

  ProblemType: BugDistroRelease: Ubuntu 10.04
  Package: unattended-upgrades 0.55ubuntu7
  ProcVersionSignature: Ubuntu 2.6.32-37.81-server 2.6.32.49+drm33.21
  Uname: Linux 2.6.32-37-server x86_64
  Architecture: amd64
  Date: Mon Feb 20 10:06:00 2012InstallationMedia: Ubuntu-Server 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.2)
  PackageArchitecture: all
  ProcEnviron:
   SHELL=/usr/local/bin/bash
   PATH=(custom, no user)
   LANG=en_GB.UTF-8SourcePackage: unattended-upgrades

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