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Re: chroot issues and

From: Alfred M. Szmidt
Subject: Re: chroot issues and .html
Date: Wed, 19 Sep 2007 19:25:34 +0200 (CEST)

          It would be useful to make a precise proposal to eliminate
          chroot as a mechanism and use sub-hurds to do the same job.
          Then people could look for flaws in it and we could see if
          it really works.

       I'm not sure what such a proposal would look like, or how one
       would find flaws in it.

   How would you build a sub-Hurd for real practical use,

More or less like a normal chroot, for a chroot one tends to do the

mkdir foo
copy basic system to foo
chroot foo

for a sub-hurd, the process is similar:

create a file, and mount it on foo
copy basic system to foo
sub-hurd foo

   and what sort of holes would be needed to make it work in a case
   where you might have used chroot?

One would have to allow access to /servers/socket/2 from the
underlying system to be able to get networking, and probobly other
files as well depending on what one wishes to use the sub-hurd for;
like block devices, normal files, etc.

We would need to modify sub-hurds so that when we start our sub-hurd
we can say that /servers/socket/2 in the sub-hurd should forward all
messages to /servers/socket/2 in the underlying system.

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