Traceback (most recent call last):
  File "/usr/lib/ubiquity/bin/ubiquity", line 210, in <module>
    main()
  File "/usr/lib/ubiquity/bin/ubiquity", line 205, in main
    install(args[0])
  File "/usr/lib/ubiquity/bin/ubiquity", line 58, in install
    ret = wizard.run()
  File "/usr/lib/ubiquity/ubiquity/frontend/gtkui.py", line 358, in run
    self.process_step()
  File "/usr/lib/ubiquity/ubiquity/frontend/gtkui.py", line 969, in process_step
    self.process_autopartitioning()
  File "/usr/lib/ubiquity/ubiquity/frontend/gtkui.py", line 1032, in process_autopartitioning
    choice = self.get_autopartition_choice()[0]
  File "/usr/lib/ubiquity/ubiquity/frontend/gtkui.py", line 2085, in get_autopartition_choice
    raise AssertionError, "no active autopartitioning choice"
AssertionError: no active autopartitioning choice