*** This bug is a duplicate of bug 1534374 ***
https://bugs.launchpad.net/bugs/1534374
This seems to be due in part to an issue with your network:
2015-12-02 17:53:34,578 DEBUG running doUpdate() (showErrors=True)
2015-12-02 17:56:36,120 ERROR IOError/SystemError in cache.update(): 'W:Failed
to fetch
http://us.archive.ubuntu.com/ubuntu/dists/vivid/universe/source/Sources Cannot
initiate the connection to us.archive.ubuntu.com:80 (91.189.91.23). - connect
(101: Network is unreachable) [IP: 91.189.91.23 80]
, W:Failed to fetch
http://us.archive.ubuntu.com/ubuntu/dists/vivid/multiverse/source/Sources
Cannot initiate the connection to us.archive.ubuntu.com:80 (91.189.91.23). -
connect (101: Network is unreachable) [IP: 91.189.91.23 80]
, W:Failed to fetch
http://us.archive.ubuntu.com/ubuntu/dists/vivid/main/binary-amd64/Packages
Cannot initiate the connection to us.archive.ubuntu.com:80 (91.189.91.23). -
connect (101: Network is unreachable) [IP: 91.189.91.23 80]
, W:Failed to fetch
http://us.archive.ubuntu.com/ubuntu/dists/vivid/restricted/binary-amd64/Packages
Cannot initiate the connection to us.archive.ubuntu.com:80 (91.189.91.23). -
connect (101: Network is unreachable) [IP: 91.189.91.23 80]
Having said that the upgrade will fail due to bug 1534374.
** This bug has been marked a duplicate of bug 1534374
unable to upgrade beyond 14.04
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https://bugs.launchpad.net/bugs/158
Title:
upgrade couldn't find software that came with 14.04 so it could not
upgrade them
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