Thanks for your bugreport. I just tried this on a fresh install of natty amd64 in a clean VM. Then I added the oneiric alternative CD and with both network and networkless upgrade option it recognized the CD and offered a correct update.
So at least the default case should work. I will still investigate why the previous attempt gave you the error. ** Changed in: update-manager (Ubuntu Oneiric) Status: Confirmed => Incomplete ** Changed in: update-manager (Ubuntu Oneiric) Importance: High => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/848659 Title: Upgrade from natty fails with 64-bit oneiric beta cd To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/848659/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs