update xubuntu 13.10 to 14.04 fails

[Yuv]

Upgrading
Fetched 0 B in 0s (0 B/s)
Exception during pm.DoInstall(): E:Internal error, packages left unconfigured. ubuntu-release-upgrader-gtk:amd64

A fatal error occurred

Please report this as a bug and include the files
/var/log/dist-upgrade/main.log and /var/log/dist-upgrade/apt.log in
your report. The upgrade has aborted.
Your original sources.list was saved in
/etc/apt/sources.list.distUpgrade.

Traceback (most recent call last):

File "/tmp/ubuntu-release-upgrader-x3q6f7/trusty", line 10, in
<module>
sys.exit(main())

File
"/tmp/ubuntu-release-upgrader-x3q6f7/DistUpgrade/DistUpgradeMain.py",
line 243, in main
if app.run():

File
"/tmp/ubuntu-release-upgrader-x3q6f7/DistUpgrade/DistUpgradeController.py",
line 1827, in run
return self.fullUpgrade()

File
"/tmp/ubuntu-release-upgrader-x3q6f7/DistUpgrade/DistUpgradeController.py",
line 1792, in fullUpgrade
if not self.doDistUpgrade():

File
"/tmp/ubuntu-release-upgrader-x3q6f7/DistUpgrade/DistUpgradeController.py",
line 1137, in doDistUpgrade
res = self.cache.commit(fprogress,iprogress)

File
"/tmp/ubuntu-release-upgrader-x3q6f7/DistUpgrade/DistUpgradeCache.py",
line 265, in commit
apt.Cache.commit(self, fprogress, iprogress)

File "/usr/lib/python2.7/dist-packages/apt/cache.py", line 504, in
commit
res = self.install_archives(pm, install_progress)

File "/usr/lib/python2.7/dist-packages/apt/cache.py", line 467, in
install_archives
res = install_progress.run(pm)

File
"/tmp/ubuntu-release-upgrader-x3q6f7/DistUpgrade/DistUpgradeView.py",
line 222, in run
os._exit(pm.ResultFailed)

AttributeError: 'apt_pkg.PackageManager' object has no attribute
'ResultFailed'

Could not install the upgrades

The upgrade has aborted. Your system could be in an unusable state. A
recovery will run now (dpkg --configure -a).

Upgrade complete

The upgrade has completed but there were errors during the upgrade
process.

To continue please press [ENTER]

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: ubuntu-release-upgrader-core 1:0.205.6
ProcVersionSignature: Ubuntu 3.11.0-23.40-generic 3.11.10.10
Uname: Linux 3.11.0-23-generic x86_64
ApportVersion: 2.12.5-0ubuntu2.2
Architecture: amd64
CrashDB: ubuntu
Date: Wed Jun 11 14:57:11 2014
MarkForUpload: True
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
Symptom: release-upgrade
UpgradeStatus: Upgraded to saucy on 2014-06-11 (0 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Yuv (yuv)]

On 14-06-16 07:34 AM, sarah soulaimana wrote:
> ** Changed in: ubuntu-release-upgrader (Ubuntu)
> Assignee: (unassigned) => sarah soulaimana (psy-4du976)

Hello Sarah and thank you for picking up this bug report.

For testing purposes I still have one laptop on 13.10. It can probably
be set in a similar status as the laptop on which the error was reported
to reproduce the potential error once a patch is ready. I can read
python and write / edit simple stuff in it, if you need my assistance,
and I am generally available at least one evening per week to contribute
to a better 'buntu experience.

The laptop on which the error occurred is no longer available. I need
it for productive work, so I simply rsynced my user folder to my backup
server and installed xubuntu 14.04 from scratch onto the SSD. A few
remarks about it and why the upgrade might have failed:

Status prior to the attempted release upgrade:
* When I bought the laptop, July 2013, Ubuntu 13.04 did not support it.
* It started life with a clean 13.10 beta install.
* To add WiFi support (critical!), I had to build a patched kernel from
source (3.10 if my memory does not betray me) with Intel's latest WiFi
drivers.
* At some point the distribution kernel caught up and I no longer used
the customized kernel, but I did not remove it.
* A few other non-critical hardware issues (audio) were fixed over the
fall. The laptop was the guinea pig to test that the developer's fixes
worked. I no longer recall the exact details, but it is all buried in a
Launchpad bug report and if need be I can search for it.
* The bluetooth functionality in 13.10 was badly broken and IIRC I
installed a deb package on top of it. Not elegant, but fixed the
immediate issue of using bluetooth devices with the laptop.
* I needed a working ffmpeg and installed that from source code, and
some other image processing software to deal with video stabilization as
well. I no longer recall the details, sorry.
* The machine was mainly used for office work, communication, and to a
lesser extent media production and consumption. I installed my
favourite software for these tasks via PPAs (LibreOffice, Inkscape, VLC,
etc., all pretty much "mainstream" software).

The failed upgrade:
* First I tried the canonical way: updated to the latest 13.10 and ran
sudo do-release-upgrade. It reported something like can't calculate the
upgrade and failed.
* I looked in the log and it showed some packages that could not be
upgraded. They did not seem critical to me. mostly because I expected a
newer version to be present in 14.10 and otherwise because I felt I do
not need them, so I just sudo apt-get purged them.
* I really went at it like a butcher because I did not care about the
software listed as conflicting in the logs. Slaughtering packages
without keeping a detailed log of them might not be a good idea, but at
that point I was tired, frustrated, and just wanted 14.04 to work on
that laptop.
* After a few trial and errors, this new error popped up and I filed the
report.
* After filing the report, I formatted the SSD and installed 14.04
clean. Now I am happy with it, until the next upgrade ;-)

The available laptop:
* Whe...