If the package xserver-xorg-video-nouveau is installed, in several cases the 10.04 to 10.10 upgrade fails with the error message
"Could not determine the upgrade
An unresolvable problem occurred while calculating the upgrade:
E:Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.
This can be caused by:
* Upgrading to a pre-release version of Ubuntu
* Running the current pre-release version of Ubuntu
* Unofficial software packages not provided by Ubuntu"
Several persons have reported that after removal of that package the upgrade was successful.
Open a terminal and enter the command
sudo apt-get remove xserver-xorg-video-nouveau
and try again.
This can be a duplicate of one of these: bug 663158, bug 658458 and bug 658581
If the package xserver- xorg-video- nouveau is installed, in several cases the 10.04 to 10.10 upgrade fails with the error message ver::Resolve generated breaks, this may be caused by held packages.
"Could not determine the upgrade
An unresolvable problem occurred while calculating the upgrade:
E:Error, pkgProblemResol
This can be caused by:
* Upgrading to a pre-release version of Ubuntu
* Running the current pre-release version of Ubuntu
* Unofficial software packages not provided by Ubuntu"
Several persons have reported that after removal of that package the upgrade was successful.
Open a terminal and enter the command xorg-video- nouveau
sudo apt-get remove xserver-
and try again.