Hi,
TULIP uses qemu to run automatic upgrades on 'virtual' installations;
this way, you can test the dist-upgrade of several environments. The
cons is that it is quite slow.
There is more information about TULIP on:
http://www.edos-project.org/xwiki/bin/view/Main/TULIP_tool
good pointer, thanks! Lucas might be interested in running this, either with
qemu or xen.
I think we have already an experimental TULIP installation working on
Debian dist-upgrades.
do you know if that is running stable->testing upgrade path?