> You simply run your system inside a virtual machine and combine the runlevels there and the host system to get the exact volume. For example runlevel 3 times runlevel 5 == 15. Of course there are those who don't understand this elegant system and are doomed to reinvent it poorly.
Thank you, that did the trick. :-)
As a side node, this is also the first compelling use case for virtualization I came across.