[Bug 979661] Re: oneiric to precise: debconf: unable to initialize frontend: Gnome and falls back to Dialog

[Jean-Baptiste Lallement]

SRU verification for Precise:

I did the following test:
1. Installed Oneiric + updates
2. Copied meta-release and meta-release-proposed to /root/update-manager
3. Changed the entry URI to file:///root/update-manager in /etc/update-manager/meta-release
4. Upgraded with update-manager -p

I couldn't reproduce the original issue and tried to force it by
removing libgtk2-perl but in that case the terminal opens directly when
installation of packages starts. Despite this, I did 3 upgrades from
Oneiric to Precise with version 1:0.156.14.6 from -proposed and didn't
see any regression.

Marking as verification-done

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https://bugs.launchpad.net/bugs/979661

Title:
  oneiric to precise: debconf: unable to initialize frontend: Gnome and
  falls back to Dialog

Status in “update-manager” package in Ubuntu:
  Fix Released
Status in “update-manager” source package in Precise:
  Fix Committed
Status in “update-manager” source package in Quantal:
  Fix Released

Bug description:
  TEST CASE:
  - there is no trivial way to reproduce this as it only happens if in the middle of the upgrade libgtk2-perl becomes unavailable
  - a regression test is sufficient

  Regression Potential: 
  - low, the worst that can happen is that the terminal gets expanded during the upgrade when this is not needed

  I was doing an upgrade from Oneiric to Precise and the machine hung in
  the process. There was a dialog somewhere in the background that I
  didn't see:

  debconf: unable to initialize frontend: Gnome
  debconf: (Unable to load Gtk -- is libgtk2-perl installed?)
  debconf: falling back to frontend: Dialog

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