8.04 -> 10.04 upgrade: could not calculate upgrade when both xubuntu-desktop and ubuntu-desktop are installed

[ebbi97a]

Binary package hint: synaptic

1) update-manager --proposed

2) Message:
Das Paket ubuntu-desktop ist zum Löschen vorgesehen, wurde aber durch das System gesperrt

3) 08.04 LTS should update to 10.04 LTS
lsb_release -rd = Ubuntu 8.04.4 LTS

The updater wanted to delete the package ubuntu-desktop, but was not able to do so. Fortunately it was able to roll back the update process.

ProblemType: Bug
Architecture: i386
Date: Sat Aug 14 19:59:57 2010
DistroRelease: Ubuntu 8.04
ExecutablePath: /usr/sbin/synaptic
Package: synaptic 0.61ubuntu9
PackageArchitecture: i386
ProcEnviron:
 PATH=/usr/lib/kde4/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/X11R6/bin
 LANG=de_AT.UTF-8
 SHELL=/bin/bash
SourcePackage: synaptic
Uname: Linux 2.6.24-28-generic i686

[Monkey (monkey-libre)]

I´ve reassigned this bug to the update-manager package.
Thank You for making Ubuntu better.

[Jean-Baptiste Lallement (jibel)]

Thank you for your report.

This should have been fixed with bug 571743. (see also bug 606150)