[Bug 1537199] [NEW] impossible to upgrade to 16.04 with sudo do-release-upgrade --devel-release

[Lewillon Bruno]

Public bug reported:

Check of the administrator of packages
Reading of the lists of packages … Ended
Construction of the tree of dependences(outbuildings)
Reading of the information of state … Ended
Construction of the structures of data … Ended

Calculation of the current modifications

Calculation of the current modifications

Impossible to estimate the upgrade

An insoluble problem arose during the preparation of the upgrade.

This maybe owed in:
* The upgrade towards a version of development of Ubuntu;
* The version of development of Ubuntu is at present used;
* Unofficial software packages, not supplied by Ubuntu.

If nothing of that kind does not apply, please indicate this bug by
using the command(order) " ubuntu-bug ubuntu-release-upgrader-core " in
a terminal.

System restore in its home state

Cancellation
Reading of the lists of packages … Ended
Construction of the tree of dependences(outbuildings)
Reading of the information of state … Ended
Construction of the structures of data … Ended

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: ubuntu-release-upgrader-core 1:0.220.8 [origin: unknown]
ProcVersionSignature: Ubuntu 3.19.0-43.49~14.04.1-generic 3.19.8-ckt10
Uname: Linux 3.19.0-43-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.14.1-0ubuntu3.19
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: Unity
Date: Fri Jan 22 21:25:52 2016
InstallationDate: Installed on 2015-11-22 (61 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to trusty on 2016-01-22 (0 days ago)

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


** Tags: amd64 apport-bug dist-upgrade third-party-packages trusty

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https://bugs.launchpad.net/bugs/1537199

Title:
  impossible to upgrade to 16.04 with sudo do-release-upgrade --devel-
  release

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

Bug description:
  Check of the administrator of packages
  Reading of the lists of packages … Ended
  Construction of the tree of dependences(outbuildings)
  Reading of the information of state … Ended
  Construction of the structures of data … Ended

  Calculation of the current modifications

  Calculation of the current modifications

  Impossible to estimate the upgrade

  An insoluble problem arose during the preparation of the upgrade.

  This maybe owed in:
  * The upgrade towards a version of development of Ubuntu;
  * The version of development of Ubuntu is at present used;
  * Unofficial software packages, not supplied by Ubuntu.

  If nothing of that kind does not apply, please indicate this bug by
  using the command(order) " ubuntu-bug ubuntu-release-upgrader-core "
  in a terminal.

  System restore in its home state

  Cancellation
  Reading of the lists of packages … Ended
  Construction of the tree of dependences(outbuildings)
  Reading of the information of state … Ended
  Construction of the structures of data … Ended

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: ubuntu-release-upgrader-core 1:0.220.8 [origin: unknown]
  ProcVersionSignature: Ubuntu 3.19.0-43.49~14.04.1-generic 3.19.8-ckt10
  Uname: Linux 3.19.0-43-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity
  Date: Fri Jan 22 21:25:52 2016
  InstallationDate: Installed on 2015-11-22 (61 days ago)
  InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to trusty on 2016-01-22 (0 days ago)

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