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

[Jean-Baptiste Lallement]

>From the beginning of term.log:
Use of uninitialized value $template in exists at /usr/share/perl5/Debconf/Template.pm line 81, <GEN2> chunk 1.
Use of uninitialized value $item in exists at /usr/share/perl5/Debconf/DbDriver/Cache.pm line 39, <GEN2> chunk 1.
Use of uninitialized value $item in exists at /usr/share/perl5/Debconf/DbDriver/Cache.pm line 39, <GEN2> chunk 1.
Use of uninitialized value $template in exists at /usr/share/perl5/Debconf/Template.pm line 81, <GEN2> chunk 2.
Use of uninitialized value $item in exists at /usr/share/perl5/Debconf/DbDriver/Cache.pm line 39, <GEN2> chunk 2.
Use of uninitialized value $item in exists at /usr/share/perl5/Debconf/DbDriver/Cache.pm line 39, <GEN2> chunk 2.
Use of uninitialized value $template in exists at /usr/share/perl5/Debconf/Template.pm line 81, <GEN2> chunk 3.
Use of uninitialized value $item in exists at /usr/share/perl5/Debconf/DbDriver/Cache.pm line 39, <GEN2> chunk 3.
Use of uninitialized value $item in exists at /usr/share/perl5/Debconf/DbDriver/Cache.pm line 39, <GEN2> chunk 3.
Use of uninitialized value $template in exists at /usr/share/perl5/Debconf/Template.pm line 81, <GEN2> chunk 4.
Use of uninitialized value $item in exists at /usr/share/perl5/Debconf/DbDriver/Cache.pm line 39, <GEN2> chunk 4.

Then further in the log
debconf: Unable to initialise frontend: Gnome
debconf: (Unable to load Gtk -- is libgtk2-perl installed?)
debconf: falling back to frontend: Dialog
Use of uninitialized value $template in exists at /usr/share/perl5/Debconf/Template.pm line 81, <GEN0> chunk 1.
Use of uninitialized value $item in exists at /usr/share/perl5/Debconf/DbDriver/Cache.pm line 39, <GEN0> chunk 1.
Use of uninitialized value $item in exists at /usr/share/perl5/Debconf/DbDriver/Cache.pm line 39, <GEN0> chunk 1.
Use of uninitialized value $template in exists at /usr/share/perl5/Debconf/Template.pm line 81, <GEN0> chunk 2.
Use of uninitialized value $item in exists at /usr/share/perl5/Debconf/DbDriver/Cache.pm line 39, <GEN0> chunk 2.
Use of uninitialized value $item in exists at /usr/share/perl5/Debconf/DbDriver/Cache.pm line 39, <GEN0> chunk 2.

As a consequent, the dialog asking to restart services on libc6 upgrade
didn't show up and the question was invisible with the Dialog debconf
frontend. From a user perspective the upgrade hanged.


** Summary changed:

- update-manager -d hung during upgrade (libc6, Oneiric to Precise)
+ oneiric to precise: debconf: unable to initialize frontend: Gnome and falls back to Dialog

** Changed in: update-manager (Ubuntu)
   Importance: Undecided => High

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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:
  New

Bug description:
  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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