This might be a duplicate of bug #721306
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,
** Changed in: update-manager (Ubuntu)
Status: New = Invalid
** Converted to question:
https://answers.launchpad.net/ubuntu/+source/update-manager/+question/202912
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I try
sudo apt-get remove xserver-xorg-video-nouveau
It removed both xserver-xorg-video-all and xserver-xorg-video-
nouveau
but when I trie to update, I still got the same error message:
Some o the error messages are:An unresolvable problem occurred while
calculating the upgrade:
E:Error,
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https://bugs.launchpad.net/bugs/1023732
Title:
Ubuntu upgrade from 10.04 to 10.10 fail
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