*** This bug is a duplicate of bug 58424 *** Thanks for your bugreport.
The first logs indicate that it was a problem with a unofficial libgl1 -mesa-dri package (the versions are not in the official edgy archive). I marked it as a duplicate therefore. Please note that in the second log ubuntu-desktop will get removed (due to the libgl1-mesa-dri package). This is not a big issue, I just wanted to point it out. ** This bug has been marked a duplicate of bug 58424 Can't calculate the upgrade with unofficial mesa/compiz packages -- Update-manager cannot update my Dapper install to Egdy https://launchpad.net/bugs/67163 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs