Comment 8 for bug 1511875

As an update to my comment above, while the release upgrader hung and did not finish the upgrade, it *did* disable all my ppa's and switch over to the Xenial repositories, which ended up leaving my system broken next time I tried pulling in updates (thinking the upgrade had failed completely and the system was still using Trusty repositories). I'm not sure what packages are at Xenial versions and what packages are at still at Trusty versions, there seems to be a mix.

So it seems I can't expect Ubuntu to upgrade between LTS versions without barfing all over itself. Gee, what fun.