Re: chroot issues and http://tri-ceps.blogspot.com/2007/07/theory-of-filesystem-relativity .html

[Richard Stallman]

    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.

Has anyone tried actually writing software to create a sub-hurd for
practical uses?  I think that would be a very useful thing to do.

It would be nice to write a special virtual partial copy file system
that a sub-hurd can use, to avoid the need to actually copy the files.

What exactly this should do, to get the job done and be secure, is the
question that we can answer by trying to really implement this.