Public bug reported:
Can't migrate from 13.10 to 14.04 for an unknown reason with "do-
release-upgrade".
1) I purged ppa gnome3-team/gnome3-staging and gnome3-team/gnome3-next
2) I did a dist-upgrade and a reboot.
3) Nothing wrong with "sudo dpkg --audit"
4) Here is the output of "do-release-upgrade" (french) :
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
ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: ubuntu-release-upgrader-core 1:0.205.7
ProcVersionSignature: Ubuntu 3.11.0-20.35-generic 3.11.10.6
Uname: Linux 3.11.0-20-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.12.5-0ubuntu2.2
Architecture: amd64
CrashDB: ubuntu
Date: Sat May 10 11:17:58 2014
InstallationDate: Installed on 2012-09-17 (599 days ago)
InstallationMedia: Ubuntu 12.04 "Precise" - Build amd64 LIVE Binary
20120425-15:28
MarkForUpload: True
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to saucy on 2014-05-10 (0 days ago)
** Affects: ubuntu-release-upgrader (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug dist-upgrade gnome3-ppa package-from-proposed saucy
third-party-packages
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https://bugs.launchpad.net/bugs/1318145
Title:
Can't migrate from 13.10 to 14.04 for an unknown reason
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