Dist. upgrade failed from 13.10 to 14.04 (ASUS notebook)

[marque]

The exact message was in dutch (see below).

Translated: the upgrader couldn't calculate the upgrade, because of:
1. upgrading to a temporary version of Ubuntu (not the case with 14.04)
2. Use of a temporary Ubuntu version (true: 13.10)
3. Unofficial software packages (true: but should not be critical I guess)

for dutch users, the full text of the error:
----

Kon de opwaardering niet berekenen

Er is een onoplosbaar probleem geconstateerd bij het berekenen van de upgrade.

 Dit kan veroorzaakt worden door:
 * Upgraden naar een voorlopige versie van Ubuntu
 * Gebruiken van de huidige voorlopige versie van Ubuntu
 * Onofficiële softwarepakketten die niet door Ubuntu geleverd zijn

Indien niets van dit alles van toepassing is, meld deze fout dan a.u.b. met behulp van de terminalopdracht 'ubuntu-bug ubuntu-release-upgrader-core'.

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: ubuntu-release-upgrader-core 1:0.205.7
ProcVersionSignature: Ubuntu 3.12.0-1.3~lp1195483v1-generic 3.12.0-rc7
Uname: Linux 3.12.0-1-generic x86_64
ApportVersion: 2.12.5-0ubuntu2.2
Architecture: amd64
CheckboxSubmission: 022834f3701ee3930b88879daa45696e
CheckboxSystem: b8f3ec504801f13fc208edb5c785b099
CrashDB: ubuntu
Date: Tue Nov 4 08:50:55 2014
InstallationDate: Installed on 2010-05-10 (1638 days ago)
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
MarkForUpload: True
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to saucy on 2014-11-04 (0 days ago)
VarLogDistupgradeTermlog:

[Brian Murray (brian-murray)]

Try manually removing the package update-manager-kde and then upgrading.

[marque (vivideo)]

Thanks Brian! I'll give it a try tomorrow. I need my notebook for an important presentation :)

[marque (vivideo)]

Unfortunately the removal of update-manger-kde didn't result in a succesfull upgrade. The upgrader is still not able to calculate the upgrade and terminates the proces.

Any ideas?

[Brian Murray (brian-murray)]

Can you give us the log files /var/log/dist-upgrade/main.log and /var/log/dist-upgrade/apt.log from the most recent attempt? Thanks!

[marque (vivideo)]

Thanx Brian!

The zip-files contains the main.log & apt.log

[Brian Murray (brian-murray)]

The problem is now ubuntu-release-upgrader-qt.

2014-11-08 10:21:53,083 DEBUG Marking 'ubuntu-desktop' for upgrade
2014-11-08 10:21:53,339 DEBUG blacklist expr 'ubuntu-release-upgrader' matches 'ubuntu-release-upgrader-qt'
2014-11-08 10:21:53,339 DEBUG The package 'ubuntu-release-upgrader-qt' is marked for removal but it's in the removal blacklist
2014-11-08 10:21:56,075 ERROR Dist-upgrade failed: 'Het pakket ‘ubuntu-release-upgrader-qt’ is gemarkeerd voor verwijdering, maar het staat op de zwarte lijst voor verwijderen.'

[marque (vivideo)]

Wow, that seems obvious! Thanks! In dutch it also says that release-upgrader-qt is marked for removal, but present in the removal blacklist. Is it safe to delete this package (manually)?

[marque (vivideo)]

Removing ubuntu-release-upgrader-qt did the job. The distro upgrade succeeded. Thank you very much Brian!

[Launchpad Janitor (janitor)]

[Expired for ubuntu-release-upgrader (Ubuntu) because there has been no activity for 60 days.]