The log files that you have attached indicate a failure to upgrade due
to an inability to calculate the upgrade:
Investigating (9) rhythmbox-data [ i386 ] < none -> 2.96-0ubuntu4.2 > ( gnome )
Broken rhythmbox-data:i386 Breaks on rhythmbox [ i386 ] < 0.12.8-0ubuntu7 ->
2.96-0ubuntu4.2 > ( gnome )
** Package changed: update-manager (Ubuntu) => ubuntu-release-upgrader
(Ubuntu)
** Description changed:
problem may be in the update manager (?)
"Could not calculate the upgrade" error when trying to upgrade from
10.04 to 12.04.2
via 'apt-cache policy pkgname': responded, "unable t
