Re: Hurd on L4

[Moritz Schulte]

Fortes Marcelo <address@hidden> writes:

> 1) have some server of Hurd running on top of L4?  or it needs to be
> translated to synchronous message passing yet?

No Hurd servers are running on top of L4 yet; this will take some
time, since much of the `framework' is still to design and/or
implement.

> 2) Hurd is almost using 100% Pthreads instead cthreads in source
> code how does it impact over you work?

Not sure what you mean.  Besides that, IIRC the Hurd servers itself
still use cthreads.

> 3)There are some ideas of Hurd on top of Mach that can be subverted
> by port it to run on top of L4?

I am not sure what you mean, but: of course many things will have to
be different, but these modifications would be an improvement.

> 4)About Unix compatibility how much it will be Unix-Like OS running
> "SCO Unix" binaries for exemple?

Binary compatibility?  Maybe we will have that one day for GNU/Linux.
I don't think supporting systems like `SCO Unix' is of any priority.

> 5)Can Someone please explain-me about the Hurd policy of "user ring
> 0" or a non root administrator OS with full power over the system?
> icannot understand a Unix system with user 100% independent of super
> user...  (maybe i have not understooded this concept)

One aim of the Hurd is to design the system in such a way that many
operation do not need superuser privileges, like they would do in
Unix.  Therefore: the Hurd tries to minimize the need of root, it
doesn't try to remove the root concept.

Hope that helps,

                moritz
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