[Bug 1580926] Re: unable to upgrade from 15.10 to 16.04

[Brian Murray]

*** This bug is a duplicate of bug 1510841 ***
    https://bugs.launchpad.net/bugs/1510841

Thank you for taking the time to report this bug and helping to make
Ubuntu better. This particular bug has already been reported and is a
duplicate of bug 1510841, so it is being marked as such. Please look at
the other bug report to see if there is any missing information that you
can provide, or to see if there is a workaround for the bug.
Additionally, any further discussion regarding the bug should occur in
the other report.  Please continue to report any other bugs you may
find.

** This bug has been marked a duplicate of bug 1510841
   "Could not calculate the upgrade" due to multiple metapackages being installed

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https://bugs.launchpad.net/bugs/1580926

Title:
  unable to upgrade from 15.10 to 16.04

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

Bug description:
  unable to upgrade either update-manager and do-release-upgrade

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: ubuntu-release-upgrader-core 1:15.10.14.4
  ProcVersionSignature: Ubuntu 4.2.0-36.41-generic 4.2.8-ckt8
  Uname: Linux 4.2.0-36-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  CrashDB: ubuntu
  Date: Thu May 12 11:06:09 2016
  InstallationDate: Installed on 2015-09-26 (228 days ago)
  InstallationMedia: Ubuntu-MATE 15.04 "Vivid Vervet" - Release amd64 (20150422.1)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to wily on 2016-05-12 (0 days ago)

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