This is definitely an issue with the installer communicating with your
mirror of the Ubuntu archive. In the log file we can see the following:
Nov 23 02:58:29 ubuntu in-target: Ign http://gp.archive.ubuntu.com
saucy-backports/universe Translation-en_US
Nov 23 02:58:29 ubuntu in-target: Fetched
Exception during installation:
Nov 23 02:59:42 ubuntu /plugininstall.py: Traceback (most recent call last):
Nov 23 02:59:42 ubuntu /plugininstall.py: File
/usr/share/ubiquity/plugininstall.py, line 1780, in module
Nov 23 02:59:42 ubuntu /plugininstall.py: install.run()
Nov 23 02:59:42
Thank you for taking the time to report this issue and helping to make
Ubuntu better. Examining the information you have given us, this does
not appear to be a bug report so we are closing it and converting it to
a question in the support tracker. We understand the difficulties you
are facing, but
