I wonder, is there a chance of getting GNU Mach to run as an
user-mode application under a different (e. g., GNU/Linux, or
Mach-based GNU/Hurd itself) system? Is there any significant
issues, beyond of simply severing all the ties to the real
hardware (and providing the replacements deemed necessary)?
NB:
* The time and qualification necessary to deploy one or more
GNU/Linux systems on a single host using User-Mode Linux is
(to my experience) significantly lower than for the other
solutions (KVM, Xen) known to me (indeed, two commands and a
less-than-a-screen long configuration file, for Debian
GNU/Linux host and guest.) Perhaps the same would stand for
GNU/Hurd and User-Mode Mach as well.
* Running User-Mode Linux doesn't imply any privileged user
intervention (contrary to both KVM and Xen) and thus gives
more confidence in ``harmlessness'' of the solution. Would
the same hold true for Mach, it would, hopefully, attract more
users to trying it.
* ... And then, what about having GNU/Mach supplied with Debian
GNU/Linux, at your service and fully ready to host one or more
GNU/Hurd instances you've just wished for?
