[Bug 1105137] Re: Debconf prompt on upgrade from quantal to raring

[Brian Murray]

I was able to recreate and research this a bit during an upgrade from Q
to R.  I received the debconf prompt regarding rsync, cups, cron and
atd.  The preinst script for libc checks to see whether or not
$RELEASE_UPGRADE_MODE = desktop.  This evironmental variable is set by
ubuntu-release-upgrader in DistUpgradeController.  Additionally, the
result of this check is logged in /var/log/dist-upgrade/main.log as "run
in 'desktop' mode" or "running in server mode".

Inspecting the running process at the time of the distribution upgrade I
found RELEASE_UPGRADE_MODE set to desktop for a dpkg process, a perl /
debconf process, and a dpkg preinst.  Its not quite clear where the
problem lies but it doesn't look like it is an issue with ubuntu-
release-upgrader.

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https://bugs.launchpad.net/bugs/1105137

Title:
  Debconf prompt on upgrade from quantal to raring

Status in “eglibc” package in Ubuntu:
  Confirmed

Bug description:
  I used update manager to upgrade from Quantal to Raring during the
  raring development cycle. I was prompted - twice - with a debconf
  dialog asking about services to restart for the libc upgrade. Most end
  users will have no idea what to do; the prompt should be preseeded or
  otherwise hidden. Clicking the forward button on the dialog resulted
  in the same dialog popping up a second time. After I clicked forward
  again, the dialog went away for good.

  See attached screenshot for the dialog in question.

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