Florian Weimer writes ("Re: Bug#412976 repoened - reassign tech-ctte (mixmaster /etc/default/*)"):
> Really? Won't upgrades re-enable disabled services if update-rc.d is
> used?
Only if you delete _all_ of the links. If you leave the K links in
the shutdown and reboot runlevels, they will not be put back.
This ought to be documented somewhere ...
Ian.