Ubiquity crash while checking packages to install...20%

[Robert Chalmas]

Ubiquity crashes every time while installing kubuntu 11.10 32 bit. This happened 4 times at the same point, quite close to the end of the installation, while displaying "Checking packages to install...20%" (text translated from French).

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: ubiquity 2.8.7
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic i686
ApportVersion: 1.23-0ubuntu3
Architecture: i386
CasperVersion: 1.287
Date: Thu Dec 1 19:45:54 2011
LiveMediaBuild: Kubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
ProcEnviron:
 LANGUAGE=
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

[Ubuntu Foundations Team Bug Bot (crichton)]

Exception during installation:
Dec 1 19:05:10 ubuntu plugininstall.py: Traceback (most recent call last):
Dec 1 19:05:10 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 1641, in <module>
Dec 1 19:05:10 ubuntu plugininstall.py: install.run()
Dec 1 19:05:10 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 55, in wrapper
Dec 1 19:05:10 ubuntu plugininstall.py: func(self)
Dec 1 19:05:10 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 169, in run
Dec 1 19:05:10 ubuntu plugininstall.py: self.install_language_packs()
Dec 1 19:05:10 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 613, in install_language_packs
Dec 1 19:05:10 ubuntu plugininstall.py: self.do_install(self.langpacks, langpacks=True)
Dec 1 19:05:10 ubuntu plugininstall.py: File "/usr/lib/ubiquity/ubiquity/install_misc.py", line 716, in do_install
Dec 1 19:05:10 ubuntu plugininstall.py: mark_install(cache, pkg)
Dec 1 19:05:10 ubuntu plugininstall.py: File "/usr/lib/ubiquity/ubiquity/install_misc.py", line 489, in mark_install
Dec 1 19:05:10 ubuntu plugininstall.py: assert cache._depcache.broken_count == 0
Dec 1 19:05:10 ubuntu plugininstall.py: AssertionError
Dec 1 19:05:10 ubuntu plugininstall.py:

[Robert Chalmas (robert-chalmas)]

Here is the result of more tests to try to find what triggers this problem:

The following factors had no effect on the problem (Ubiquity crashed each time at the same point):
- using a different proxy (we have currently 2 in my corporate network)
- installing the 32 bit or the 64 bit version of Kubuntu 11.10
- starting with a disk already partitioned (and reusing those partitions) or a disk with no partition and creating them during install
- installing in English instead of if French
- installing on another machine

Only this factor had an effect:
- installing Ubuntu 11.10 64 bit instead of Kubuntu 11.10 64 bit was successful

A strange fact:
- I could install Kubuntu 11.10 64 bit successfully on the same machine shortly after it was released. Now this is no more possible.

Possible explanation:
- could a recent change in a repository used by Kubuntu but not by Ubuntu be the reason for the current problem?

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[luh (freakyveit)]

I also get this in the 64Bit version.

[Lenard Szucs (jevgeje)]

Same error while trying to install it in hungarian (64bit)