First of all it worked ok!

I did not have enough free space on '/' (root) to complete it at once so it aborted twice for me ..
If it does that: don't panic .. in the terminal (as root) run dpkg --configure -a (which will finish setup of all the already installed packages -- which will clear up more space again. (running 'sync' is always good as it can give u even more space

after that just re-start apt-get dist-upgrade -- rinse and repeat until done

just wanted to upgrade only to notice it wants to download like 111MB and of course there ain'T enough space on /var/cache/apt/archives .. (it says that when you run apt-get dist-upgrade as root from the command line)

Warning: no guarantee this works / does not break anything / delete your data,..

!!!I found that putting archives on the sd card is a bad idea since it seems to unmount that in the process -- recovery was possible for me but i don'T suggest it as it can be a bit tricky