Cannot upgrade to Vivid using do-release-upgrade

Bug #1520917 reported by Gabriel
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
ubuntu-release-upgrader (Ubuntu)
New
Undecided
Unassigned

Bug Description

Hi,

I tried to upgrade a friend's system and I get (sorry, his system is in French):

sudo do-release-upgrade
...
...
Vérification du gestionnaire de paquets
Lecture des listes de paquets… Terminé
Construction de l'arbre des dépendances
Lecture des informations d'état… Terminé
Construction des structures de données… Terminé

Calcul des modifications en cours

Calcul des modifications en cours

Impossible d'évaluer la mise à niveau

Un problème insoluble est survenu lors de la préparation de la mise à
niveau.

Ceci peut-être dû à :
* la mise à niveau vers une version de développement d'Ubuntu ;
* la version de développement d'Ubuntu est actuellement utilisée ;
* des paquets logiciels non officiels, non fournis par Ubuntu.

Si rien de tout cela ne s'applique, veuillez signaler ce bogue en
utilisant la commande 'ubuntu-bug ubuntu-release-upgrader-core' dans
un terminal.

Restauration du système dans son état d'origine

Annulation
Lecture des listes de paquets… Terminé
Construction de l'arbre des dépendances
Lecture des informations d'état… Terminé
Construction des structures de données… Terminé

I tried reading the help to see if I there is a verbose mode but there is none. I did 'ubuntu-bug ubuntu-release-upgrader-core' as suggested and it brought me here.

lsb_release -rd
Description: Ubuntu 14.04.3 LTS
Release: 14.04

Thanks,
Gabriel

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: ubuntu-release-upgrader-core 1:0.220.8
ProcVersionSignature: Ubuntu 3.13.0-70.113-generic 3.13.11-ckt29
Uname: Linux 3.13.0-70-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.19
Architecture: amd64
CrashDB: ubuntu
Date: Sun Nov 29 13:38:16 2015
InstallationDate: Installed on 2011-05-16 (1657 days ago)
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to trusty on 2015-11-29 (0 days ago)
mtime.conffile..etc.update.manager.release.upgrades: 2015-11-29T12:19:31.658211

Revision history for this message
Gabriel (rossetti-gabriel) wrote :
Revision history for this message
Brian Murray (brian-murray) wrote :

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 1534374, 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.

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