Traceback (most recent call last):
  File "/usr/lib/ubiquity/bin/ubiquity", line 524, in <module>
    main(oem_config)
  File "/usr/lib/ubiquity/bin/ubiquity", line 509, in main
    install(args[0], query=options.query)
  File "/usr/lib/ubiquity/bin/ubiquity", line 242, in install
    ret = wizard.run()
  File "/usr/lib/ubiquity/ubiquity/frontend/gtk_ui.py", line 508, in run
    self.process_step()
  File "/usr/lib/ubiquity/ubiquity/frontend/gtk_ui.py", line 1159, in process_step
    self.progress_loop()
  File "/usr/lib/ubiquity/ubiquity/frontend/gtk_ui.py", line 1042, in progress_loop
    (ret, realtb))
RuntimeError: Install failed with exit code 1
Traceback (most recent call last):
  File "/usr/share/ubiquity/install.py", line 2488, in <module>
    install.run()
  File "/usr/share/ubiquity/install.py", line 416, in run
    self.remove_extras()
  File "/usr/share/ubiquity/install.py", line 2257, in remove_extras
    if self.db.get('oem-config/remove_extras') == 'true':
  File "/usr/lib/python2.6/dist-packages/debconf.py", line 65, in <lambda>
    lambda *args, **kw: self.command(command, *args, **kw))
  File "/usr/lib/python2.6/dist-packages/debconf.py", line 101, in command
    raise DebconfError(status, data)
DebconfError: (10, "oem-config/remove_extras doesn't exist")