[Bug 1816495] Re: Failed version upgrade 16.04 LTS to 18.04 LTS

[Brian Murray]

Reviewing the log file, /var/log/dist-upgrade/main.log, from your
upgrade attempt there was a failure to communicate with the mirror of
the Ubuntu archive which you use. This could either be due to an issue
with your connection to the mirror or with the mirror itself.
Regardless, this is an issue you'll need to sort out by fixing your
network connection or switching to a different mirror of the Ubuntu
archive before the upgrade can complete. If after resolving the
communication error with the mirror you are still unable to upgrade to a
new release of Ubuntu please open a new bug report so we'll have fresh
log files. Thanks and good luck!

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

** Tags added: connection-refused

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https://bugs.launchpad.net/bugs/1816495

Title:
  Failed version upgrade 16.04 LTS to 18.04 LTS

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

Bug description:
  Didn't catch the exact error. Something about a mirror error.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubuntu-release-upgrader-core 1:16.04.26
  ProcVersionSignature: Ubuntu 4.15.0-45.48~16.04.1-generic 4.15.18
  Uname: Linux 4.15.0-45-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.18
  Architecture: amd64
  CrashDB: ubuntu
  Date: Mon Feb 18 16:13:57 2019
  InstallationDate: Installed on 2018-03-22 (333 days ago)
  InstallationMedia: Ubuntu 16.04.4 LTS "Xenial Xerus" - Release amd64 (20180228)
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_US
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to xenial on 2019-02-19 (0 days ago)
  VarLogDistupgradeAptlog:
   Log time: 2019-02-18 16:12:02.348022
   Log time: 2019-02-18 16:12:04.001520
   Log time: 2019-02-18 16:13:40.689456
   Log time: 2019-02-18 16:14:00.840416
  VarLogDistupgradeTermlog:

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