Upgrading from Dapper to Edgy...

I upgraded my Kubuntu from Dapper to Edgy recently and that upgrade wasn't exactly flawless as I've written before. It seems quite a few people have had the same experience. The reason for most of the problems is most likely because people use unofficial repositories and tools to make their system work as they like. I do this myself too (installed proprietary codecs to be able to play various videos and music files) and other such things.
I think this blog post sums up the problems quite well and also gives a few good suggestions as to what can be done to make the situation better. The basic idea is to make the upgrade process more intelligent. This will of course never be perfect, but it have the potential to make it a lot better and cut down on the complaints. If people get the nice warning ("you are using unofficial repositories which might cause the upgrade to fail and make your system unusable" or something like that) before the upgrade proceeds, lots of people would think twice before continuing.