Traceback (most recent call last):
  File "/usr/bin/ubiquity", line 66, in <module>
    main()
  File "/usr/bin/ubiquity", line 62, in main
    os.execvp(toexec[0], toexec)
  File "os.py", line 354, in execvp
    _execvpe(file, args)
  File "os.py", line 392, in _execvpe
    func(fullname, *argrest)
OSError: [Errno 2] No such file or directory