The wayland0 packages that has no newer version but some conflicts on the old version confuses libapt when it tries to resolve the dependencies. A simple dummay package for the transition does the trick - the transitional package gets removed during the upgrade as well and it can get removed immediately after trusty is released.
** Patch added: "Debdiff for wayland" https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1304365/+attachment/4074994/+files/wayland_1.4.0-1ubuntu1.debdiff ** Changed in: wayland (Ubuntu) Status: New => In Progress ** Changed in: ubuntu-release-upgrader (Ubuntu) Status: New => In Progress -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1304365 Title: Precise to Trusty - all of main - fails: Broken transition from libwayland0 to libwayland-client0 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1304365/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs