[Bug 1530078] Re: Cannot upgrade from 14.04 to 15.04

[Brian Murray]

You seem to be missing an ubuntu meta package.

2015-12-30 04:21:02,963 DEBUG plugins for condition 'from_trustyPostDistUpgradeCache' are '[]'
2015-12-30 04:21:02,963 DEBUG none of the '['ubuntu-desktop', 'kubuntu-desktop', 'xubuntu-core', 'xubuntu-desktop', 'ubuntustudio-desktop', 'mythbuntu-desktop', 'kubuntu-netbook', 'lubuntu-core', 'lubuntu-desktop', 'ubuntu-gnome-desktop']' meta-pkgs installed
2015-12-30 04:21:02,963 DEBUG guessing 'ubuntu-desktop' as missing meta-pkg
2015-12-30 04:21:03,441 ERROR failed to mark 'ubuntu-desktop' for install (E:Unable to correct problems, you have held broken packages.)
2015-12-30 04:30:05,935 DEBUG blacklist expr 'unity$' matches 'unity'
2015-12-30 04:30:05,935 DEBUG The package 'unity' is marked for removal but it's in the removal blacklist
2015-12-30 04:32:24,025 ERROR Dist-upgrade failed: 'The package 'unity' is marked for removal but it is in the removal blacklist.'
2015-12-30 04:32:24,026 DEBUG abort called

Please install the ubuntu-desktop package and try the upgrade again.

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

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https://bugs.launchpad.net/bugs/1530078

Title:
  Cannot upgrade from 14.04 to 15.04

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

Bug description:
  1) Ubuntu Version 14.04 LTS

  
  Was trying to upgrade from current version to version 15.04 LTS using ubuntu software  

  Get “Unable to calculate upgrade” error

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: ubuntu-release-upgrader-core 1:0.220.8
  ProcVersionSignature: Ubuntu 3.16.0-57.77~14.04.1-generic 3.16.7-ckt20
  Uname: Linux 3.16.0-57-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity
  Date: Wed Dec 30 04:32:40 2015
  InstallationDate: Installed on 2015-07-03 (180 days ago)
  InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to trusty on 2015-12-30 (0 days ago)
  VarLogDistupgradeTermlog:
   
  mtime.conffile..etc.update.manager.release.upgrades: 2015-12-30T04:00:09.003425

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