ubiquity crashed with InstallStepError in configure_user() karmic koala alpha 4

[loverjezus]

Binary package hint: ubiquity

Today I downloaded alpha4 desktop amd64 iso, moved it onto liveUSB via unetbootin, and tried to install on my hard drive from liveUSB.

I tried 3 times - when installator is adding new users, ubiquity crush, and installator disappears, without continuing it's job.

In result, I'm not able to install Ubuntu to the hard drive.

ProblemType: Crash
Architecture: amd64
Date: Mon Aug 17 23:01:53 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/lib/ubiquity/bin/ubiquity
InterpreterPath: /usr/bin/python2.6
LiveMediaBuild: Ubuntu 9.10 "Karmic Koala" - Alpha amd64 (20090812.3)
Package: ubiquity 1.99.6
ProcCmdline: /usr/bin/python /usr/lib/ubiquity/bin/ubiquity gtk_ui
ProcEnviron: Error: [Errno 13] Permission denied: '/proc/4407/environ'
ProcVersionSignature: Ubuntu 2.6.31-5.24-generic
PythonArgs: ['/usr/lib/ubiquity/bin/ubiquity', 'gtk_ui']
SourcePackage: ubiquity
Title: ubiquity crashed with InstallStepError in configure_user()
Uname: Linux 2.6.31-5-generic x86_64
UserGroups:

[loverjezus (loverjezus)]

In fact I found this bugreport:
https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/258603

And checked my /home directory.
There was the same userdir that I wanted to create, and that was the reason that installer crashed.
After changing username or removing old userdir, everything was fixed.