[Bug 1511442] Re: upgrade from vivid to wily aborted

[Jean-Baptiste Lallement]

Thanks for your report.

Error from apt-term.log
Removing unity8 (8.02+15.04.20150409.1-0ubuntu1) ...
dpkg: cycle found while processing triggers:
 chain of packages whose triggers are or may be responsible:
  gnome-menus -> desktop-file-utils
 packages' pending triggers which are or may be unresolvable:
  fontconfig: /usr/share/ghostscript/fonts: /usr/share/fonts
  gnome-menus: /usr/share/applications
  desktop-file-utils: /usr/share/applications
  ureadahead: /etc/init.d: /etc/init
  mime-support: /usr/share/applications
  ufw: /etc/ufw/applications.d
dpkg: error processing package fontconfig (--remove):
 triggers looping, abandoned
Processing triggers for mime-support (3.58ubuntu1) ...
Errors were encountered while processing:
 fontconfig

** Summary changed:

- upgrade from vivid to wily aborted
+ upgrade from vivid to wily aborted - dpkg: error processing package fontconfig (--remove):  triggers looping, abandoned

** Package changed: ubuntu-release-upgrader (Ubuntu) => dpkg (Ubuntu)

** Changed in: dpkg (Ubuntu)
   Importance: Undecided => High

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https://bugs.launchpad.net/bugs/1511442

Title:
  upgrade from vivid to wily aborted - dpkg: error processing package
  fontconfig (--remove):  triggers looping, abandoned

Status in dpkg package in Ubuntu:
  New

Bug description:
  The main issue seemed to be fontconfig but I see a lot of unconfigured
  packages in the log.

  I reinstalled fontconfig from the command line and restarted the
  upgrade which ten finished. I tried dpkg -a --configure and apt-get
  install -f and neither did anything

  Symptoms now
  indicator-power needed to be reinstalled as I had no battery icon

  ubuntu-sdk will not install
  The following packages have unmet dependencies:
   ubuntu-sdk : Depends: ubuntu-sdk-libs-dev but it is not going to be installed
                Depends: qtcreator-plugin-ubuntu but it is not going to be installed

  (This was do to some test version of oxide I somehow had installed)

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