Comment 2 for bug 1147935

Exception during installation:
Mar 5 22:32:26 ubuntu plugininstall.py: Traceback (most recent call last):
Mar 5 22:32:26 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 1730, in <module>
Mar 5 22:32:26 ubuntu plugininstall.py: install.run()
Mar 5 22:32:26 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 55, in wrapper
Mar 5 22:32:26 ubuntu plugininstall.py: func(self)
Mar 5 22:32:26 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 159, in run
Mar 5 22:32:26 ubuntu plugininstall.py: self.configure_network()
Mar 5 22:32:26 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 407, in configure_network
Mar 5 22:32:26 ubuntu plugininstall.py: os.symlink(linkto, targetpath)
Mar 5 22:32:26 ubuntu plugininstall.py: OSError: [Errno 17] File exists
Mar 5 22:32:26 ubuntu plugininstall.py: