[Bug 1572298] Re: Trusty w/Utopic HWE can't calculate upgrade to Xenial

[Brian Murray]

*** This bug is a duplicate of bug 1571677 ***
    https://bugs.launchpad.net/bugs/1571677

This is likely a duplicate of bug 1571677.  The new transitional package
has information about -utopic and -vivid.

** This bug has been marked a duplicate of bug 1571677
   upgrading caused a broken apt cache due to *-lts-vivid packages conflicting with current X packages

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https://bugs.launchpad.net/bugs/1572298

Title:
  Trusty w/Utopic HWE can't calculate upgrade to Xenial

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

Bug description:
  Installed Ubuntu GNOME 14.04.2, applied all updates, and attempted
  upgrade to Xenial using 'update-manager -d -c' and I'm told:

  Could not calculate the upgrade

  An unresolvable problem occurred while calculating the upgrade.

   This can be caused by:
   * Upgrading to a pre-release version of Ubuntu
   * Running the current pre-release version of Ubuntu
   * Unofficial software packages not provided by Ubuntu

  If none of this applies, then please report this bug using the command
  'ubuntu-bug ubuntu-release-upgrader-core' in a terminal.

  So this is Trusty w/Utopic HWE attempting to upgrade to Xenial.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: ubuntu-release-upgrader-core 1:0.220.8
  ProcVersionSignature: Ubuntu 3.16.0-70.90~14.04.1-generic 3.16.7-ckt25
  Uname: Linux 3.16.0-70-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: GNOME
  Date: Tue Apr 19 14:46:37 2016
  InstallationDate: Installed on 2016-04-19 (0 days ago)
  InstallationMedia: Ubuntu-GNOME 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to trusty on 2016-04-19 (0 days ago)
  VarLogDistupgradeTermlog:

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