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

[Steve Langasek]

So I'm confused as to how this could have been fixed already in precise,
given that the changes in DistUpgradeViewGtk3.py to support this were
backed out as a result of the 1:0.156.14.5 security update.  It's
possible that when Adam tested, he did so against the right (precise-
proposed) release-upgrader tarball to allow this to work, but that's
definitely all superseded now by the security update - hence the new SRU
upload.

A diff against precise-updates confirms that 1:0.156.14.2 is not part of
the revision history of the currently published package.  Hence the new
SRU.

** Changed in: update-manager (Ubuntu Precise)
       Status: Fix Released => Fix Committed

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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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