There seems to be a failure communicating with your mirror:
2014-05-28 19:11:39,093 ERROR IOError/SystemError in cache.update(): 'W:Failed
to fetch http://mirrors.coreix.net/ubuntu/dists/saucy/universe/source/Sources
Unable to connect to mirrors.coreix.net:http: [IP: 2a01:c0:2:3d::2 80]
, W:Failed to fetch
http://mirrors.coreix.net/ubuntu/dists/saucy/multiverse/source/Sources Unable
to connect to mirrors.coreix.net:http: [IP: 2a01:c0:2:3d::2 80]
, W:Failed to fetch
http://mirrors.coreix.net/ubuntu/dists/saucy/main/binary-amd64/Packages Unable
to connect to mirrors.coreix.net:http: [IP: 2a01:c0:2:3d::2 80]
Please check your network connection or switch to a different mirror and
try the upgrade again.
** Changed in: ubuntu-release-upgrader (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1324219
Title:
distribution upgrade failure from command line
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