I'm going to try an in-place distribution upgrade on my main desktop, the hex-core. Sometimes (usually) this works great, but occasionally it wonks up. Like my laptop, I've got a smaller partition (64GB) for root, and separate partition (32GB) for swap, but it's also got a separate /usr/local (128GB). The rest is /home, so if I need to, I can scrap what I've got and start anew.

Here goes!