I managed to proceed by filtering on broken packages in synaptic and have those fixed through synaptic. After that the partial upgrade worked.
However I never attempted to reinstall packages and never noticed the debsums errors that you get. I only got the failure to upgrade ubuntu- desktop. So your mileage may vary. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/828759 Title: package ubuntu-desktop 1.240 failed to install/upgrade: ErrorMessage: dependency problems - leaving unconfigured To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/at-spi2-core/+bug/828759/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs