Public bug reported:
I was attempting to install 12.04 from the amd64 LiveCD. During the
timezone selection, there is an unhandled ValueError if there is a
network connection but not an internet connection. In my case, I was
sitting behind an AP that requires authentication via a Java applet
(which I install from the internet (for which I need Java (which I
install from the internet (for which ... [Curse you Cisco!])))).
Therefore, the installer could send out a JSON request, but what it gets
back is the authentication page, not a valid JSON document. That leads
to this error:
Traceback (most recent call last):
File "/usr/lib/ubiquity/plugins/ubi-timezone.py", line 173, in geoname_cb
for result in json.loads(message.response_body.data):
File "/usr/lib/python2.7/json/__init__.py", line 326, in loads
return _default_decoder.decode(s)
File "/usr/lib/python2.7/json/decoder.py", line 366, in deocde
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "/usr/lib/python2.7/json/decoder.py", line 384, in raw_decode
raise ValueError("No JSON object could be decoded")
ValueError: No JSON object could be decoded
The installer worked fine once I shut off the network connection, so I
think the fix is easy: Put a try/except block around the loop at line
173 of ubi-timezone.py, with "self.geoname_cache[text] = model" as an
else clause.
If you need the logs, let me know. But I hope the problem is rather
clear.
** Affects: ubiquity (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1017711
Title:
Unhandled exception during timezone selection
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