[Bug 1611965] [NEW] Unable to upgrade from 14.04 to 16.04

[Ferry Kouijzer]

Public bug reported:

The system has all available patches for 14.04 installed.

1. Release using: 
Description:    Ubuntu 14.04.5 LTS
Release:        14.04

2. Running command: do-release-upgrade
3. Expected result: upgraded to 16.04
4. Error:
Could not calculate the upgrade

An unresolvable problem occurred while calculating the upgrade.

In the apt.log of the dist-upgrade there is a lot of reference to both
the php5 and php7.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: ubuntu-release-upgrader-core 1:0.220.8
ProcVersionSignature: Ubuntu 3.13.0-93.140-generic 3.13.11-ckt39
Uname: Linux 3.13.0-93-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.21
Architecture: amd64
CrashDB: ubuntu
Date: Wed Aug 10 22:50:30 2016
InstallationDate: Installed on 2014-03-02 (892 days ago)
InstallationMedia: Ubuntu-Server 13.10 "Saucy Salamander" - Release amd64 (20131016)
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 2016-08-10 (0 days ago)

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug dist-upgrade trusty

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https://bugs.launchpad.net/bugs/1611965

Title:
  Unable to upgrade from 14.04 to 16.04

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

Bug description:
  The system has all available patches for 14.04 installed.

  1. Release using: 
  Description:    Ubuntu 14.04.5 LTS
  Release:        14.04

  2. Running command: do-release-upgrade
  3. Expected result: upgraded to 16.04
  4. Error:
  Could not calculate the upgrade

  An unresolvable problem occurred while calculating the upgrade.

  In the apt.log of the dist-upgrade there is a lot of reference to both
  the php5 and php7.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: ubuntu-release-upgrader-core 1:0.220.8
  ProcVersionSignature: Ubuntu 3.13.0-93.140-generic 3.13.11-ckt39
  Uname: Linux 3.13.0-93-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.21
  Architecture: amd64
  CrashDB: ubuntu
  Date: Wed Aug 10 22:50:30 2016
  InstallationDate: Installed on 2014-03-02 (892 days ago)
  InstallationMedia: Ubuntu-Server 13.10 "Saucy Salamander" - Release amd64 (20131016)
  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 2016-08-10 (0 days ago)

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