Doing the upgrade on the command line (s/natty/oneiric/ in /etc/apt/sources.list, then apt-get update; apt-get dist-upgrade) gives:
till@till-desktop:~$ sudo apt-get dist-upgrade Reading package lists... Done Building dependency tree Reading state information... Done Calculating upgrade... Failed The following packages have unmet dependencies: ia32-libs : Recommends: ia32-libs-multiarch but it is not installable Breaks: nspluginwrapper (< 1.4.4-0ubuntu2) but 1.2.2-0ubuntu9 is to be installed E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages. till@till-desktop:~$ So the replacement of ia32-libs by individual 32-bit libs seems not to work. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/873883 Title: Natty->Oneiric Upgrade failed: An unresolvable problem occurred while calculating the upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/873883/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs