ubiquity crashes on boot in kubuntu live session

[Chad A Davis]

This is kubuntu-oneiric-amd64+mac.iso from 2011-09-21

ubiquity crashes while the system is still booting, i.e. before it gets to the "Would you like to try it or install it" screen. After dismissing the crash, the live desktop loads normally.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: ubiquity 2.7.34
ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4
Uname: Linux 3.0.0-11-generic x86_64
ApportVersion: 1.23-0ubuntu1
Architecture: amd64
CasperVersion: 1.284
Date: Wed Sep 21 20:56:50 2011
LiveMediaBuild: Kubuntu 11.10 "Oneiric Ocelot" - Beta amd64+mac (20110921.1)
ProcEnviron:
 LANGUAGE=
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)