If that makes you happy
As I said I followed that link: http://askubuntu.com/questions/11156...w-do-i-recover
I knew it was a bad upgrade, because the owner told me she interrupted it while updating (because it froze).
This is a summary with some notes of that link:
First I obtained the Ubuntu install/live CD for the correct bit-depth (64 in my case).
sudo dpkg --configure -a
did not work.
Then boot off the CD, choose "Try Ubuntu".
Open a terminal and determine where your old installation is located. Personally I use
. Ubuntu lets you sudo everything.
Make a directory and mount your old root there.
Bind the special system directories onto your old installation with
(change root) into your old system.
. It took a hell of long time in this case, as if all packages were being replaced. (Maybe I forgot to bind sys :-X) In any case, don't interrupt it. Now you should be able to reboot normally.