Ubiquity crashes after "Manually edit partition table"

[Steph]

I have an internal hard drive and also an external hard drive plugged.
Ubiquity correctly detects my disks (the internal and the external). If I select "Manually edit partition table", Ubiquity crashes and I have the following error :

Traceback (most recent call last):
  File "/usr/bin/ubiquity", line 112, in ?
    install(sys.argv[1])
  File "/usr/bin/ubiquity", line 52, in install
    ret = wizard.run()
  File "/usr/lib/python2.4/site-packages/ubiquity/frontend/kde-ui.py", line 305, in run
    self.process_step()
  File "/usr/lib/python2.4/site-packages/ubiquity/frontend/kde-ui.py", line 719, in process_step
    self.process_disk_selection()
  File "/usr/lib/python2.4/site-packages/ubiquity/frontend/kde-ui.py", line 771, in process_disk_selection
    if self.manual_choice is None or unicode(choice, "utf-8") == self.manual_choice:
TypeError: decoding Unicode is not supported

Note: this crash does not happen if my external hard drive is unplugged...

[Steph (stephane-deraco)]

The /var/log/installer/syslog file just after the crash.

[Steph (stephane-deraco)]

The /var/log/partman file just after the crash.

[Steph (stephane-deraco)]

By the way, I use Kubuntu Flight 7

[Colin Watson (cjwatson)]

Thanks for your report. This is also bug 43125, and is fixed in current daily builds (http://cdimage.ubuntu.com/kubuntu/daily-live/current/).