[Bug 1038573] Re: Unreadable messages displayed during Lucid -> Precise upgrade

[Mathieu Trudel-Lapierre]

Yes, that's the expected "resolution", and what we try to do via
evolution --force-shutdown but perhaps unsuccessfully.

I re-ran the upgrade on metal and managed to get the error that is the
most likely cause of the unreadable text (in any application, since any
already-running application runs the risk of showing unreadable
dialogs):

(evolution-alarm-notify:1708): Pango-CRITICAL **: No modules found:
No builtin or dynamically loaded modules were found.
PangoFc will not work correctly.
This probably means there was an error in the creation of:
  '/etc/pango/pango.modules'
You should create this file by running:
  pango-querymodules > '/etc/pango/pango.modules'

(evolution-alarm-notify:1708): Pango-WARNING **: failed to choose a
font, expect ugly output. engine-type='PangoRenderFc', script='latin'

(evolution-alarm-notify:1708): Pango-WARNING **: failed to choose a
font, expect ugly output. engine-type='PangoRenderFc', script='common'

Indeed, libpango1.0-common happily removes /etc/pango/pango.modules
after the upgrade:

libpango1.0-common.postinst:# until version 1.14.5-1, we generated a /etc/pango/pango.modules
libpango1.0-common.postinst:    echo "I: Purging /etc/pango/pango.modules" >&2
libpango1.0-common.postinst:    rm -f /etc/pango/pango.modules

** Package changed: evolution (Ubuntu) => pango1.0 (Ubuntu)

** Changed in: pango1.0 (Ubuntu)
     Assignee: (unassigned) => Mathieu Trudel-Lapierre (mathieu-tl)

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https://bugs.launchpad.net/bugs/1038573

Title:
  Unreadable messages displayed during Lucid -> Precise upgrade

Status in “pango1.0” package in Ubuntu:
  Triaged
Status in “pango1.0” source package in Precise:
  Triaged

Bug description:
  I'm just testing 10.04.4 -> 12.04.1 upgrades and the upgrade did
  complete successfully but twice during the upgrade I was presented
  with a dialog box that's totally unreadable, and the upgrade process
  does not proceed until I click on the unreadable widget in the lower
  right hand corner of the box. I'm attaching a screenshot.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: update-manager 1:0.156.14.9
  ProcVersionSignature: Ubuntu 3.2.0-29.46-generic 3.2.24
  Uname: Linux 3.2.0-29-generic i686
  ApportVersion: 2.0.1-0ubuntu12
  Architecture: i386
  Date: Sun Aug 19 00:30:02 2012
  GsettingsChanges:
   com.ubuntu.update-manager first-run false
   com.ubuntu.update-manager launch-time 1345345338
  InstallationMedia: Ubuntu 10.04.4 LTS "Lucid Lynx" - Release i386 (20120214.2)
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: update-manager
  UpgradeStatus: Upgraded to precise on 2012-08-19 (0 days ago)
  VarLogDistupgradeAptclonesystemstate.tar.gz: Error: [Errno 13] Permission denied: '/var/log/dist-upgrade/apt-clone_system_state.tar.gz'

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