Traceback (most recent call last):
  File "/usr/sbin/univention-upgrade", line 399, in <module>
    main()
  File "/usr/sbin/univention-upgrade", line 353, in main
    performUpdate(options.updateto, ignoressh=options.ignoressh, ignoreterm=options.ignoreterm, interactive=not options.noninteractive, silent=False)
  File "/usr/sbin/univention-upgrade", line 200, in performUpdate
    retcode = subprocess.call(['/usr/share/univention-updater/univention-updater',  'net', '--updateto' , '%s' % (version_next)] + params , shell=False, env=os.environ)
  File "/usr/lib/python2.7/subprocess.py", line 493, in call
    return Popen(*popenargs, **kwargs).wait()
  File "/usr/lib/python2.7/subprocess.py", line 1301, in wait
    pid, sts = _eintr_retry_call(os.waitpid, self.pid, 0)
  File "/usr/lib/python2.7/subprocess.py", line 478, in _eintr_retry_call
    return func(*args)
KeyboardInterrupt