[Bug 1688526] Re: unable to upgrade from 14.04 to 16.04.2

[Brian Murray]

This was likely a temporary issue, could you try the upgrade again?

2017-05-05 10:00:22,136 DEBUG running doUpdate() (showErrors=True)
2017-05-05 10:05:14,607 ERROR IOError/SystemError in cache.update(): 'W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial/universe/source/Sources  404  Not Found [IP: 91.189.88.152 80]
, W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial/universe/binary-amd64/Packages  404  Not Found [IP: 91.189.88.152 80]
, W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial/universe/binary-i386/Packages  404  Not Found [IP: 91.189.88.152 80]
, E:Some index files failed to download. They have been ignored, or old ones used instead.'. Retrying (currentRetry: 0)
2017-05-05 10:09:24,921 ERROR IOError/SystemError in cache.update(): 'W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial/universe/source/Sources  404  Not Found [IP: 91.189.88.162 80]
, W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial/universe/binary-amd64/Packages  404  Not Found [IP: 91.189.88.162 80]
, W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial/universe/binary-i386/Packages  404  Not Found [IP: 91.189.88.162 80]
, E:Some index files failed to download. They have been ignored, or old ones used instead.'. Retrying (currentRetry: 1)
2017-05-05 10:13:35,926 ERROR IOError/SystemError in cache.update(): 'W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial/universe/source/Sources  404  Not Found [IP: 91.189.88.162 80]
, W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial/universe/binary-amd64/Packages  404  Not Found [IP: 91.189.88.162 80]
, W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial/universe/binary-i386/Packages  404  Not Found [IP: 91.189.88.162 80]
, E:Some index files failed to download. They have been ignored, or old ones used instead.'. Retrying (currentRetry: 2)

** Changed in: ubuntu-release-upgrader (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1688526

Title:
  unable to upgrade from 14.04 to 16.04.2

Status in ubuntu-release-upgrader package in Ubuntu:
  Incomplete

Bug description:
  while upgrading, it couldnt download the packages and terminates after
  some time reporting network issues which is highly unlikely.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: ubuntu-release-upgrader-core 1:0.220.9
  ProcVersionSignature: Ubuntu 3.13.0-117.164-generic 3.13.11-ckt39
  Uname: Linux 3.13.0-117-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.23
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity
  Date: Fri May  5 10:26:54 2017
  InstallationDate: Installed on 2017-04-28 (7 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_IN:en
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_IN
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  Symptom: dist-upgrade
  UpgradeStatus: Upgraded to trusty on 2017-05-05 (0 days ago)
  VarLogDistupgradeAptlog:
   Log time: 2017-05-05 09:59:41.118257
   Log time: 2017-05-05 10:00:15.558604
   Log time: 2017-05-05 10:25:49.820166
  VarLogDistupgradeTermlog:

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