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Message-ID: <3B658BCA.CFE748A3@cportcorp.com>
Date: Mon, 30 Jul 2001 12:31:06 -0400
From: Peter Buckley <peter DOT buckley AT cportcorp DOT com>
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To: "Larry Hall (RFK Partners, Inc)" <lhall AT rfk DOT com>
CC: Noel L Yap <yap_noel AT jpmorgan DOT com>, cygwin AT cygwin DOT com
Subject: Re: chroot and mount question
References: <4 DOT 3 DOT 1 DOT 2 DOT 20010730115430 DOT 0226dbb8 AT pop DOT ma DOT ultranet DOT com>
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This is from the Solaris 8 (pretty sure, they just got upgraded) man 
page for chroot-

"The chroot  utility causes  command to be executed  relative
     to   newroot.  The meaning of any initial slashes (|) in the
     path names is changed to  newroot for  command  and  any  of
     its  child  processes."

So / should be chroot-ed to /view/view0, and 
ls /vobs 
is the same as saying 
ls /view/view0/vobs. 
I can't see it any other way. I mean, if

chroot /view/view0 
ls /vobs 

gives you 
/vob1

Then why bother doing a chroot at all? If this is the expected 
behavior, why not just forget about doing a chroot- it is a no-op.

I don't understand- Please explain further, 
this looks like chroot is NOT working right.

Confused,
Peter

"Larry Hall (RFK Partners, Inc)" wrote:
> 
> At 11:32 AM 7/30/2001, Noel L Yap wrote:
> >If I have the following mount structure:
> >d:\cygwin on / type user (binmode)
> >v: on /view type user (binmode)
> >d:\cygwin on /view/nyap-tig-du type user (binmode)
> >v:\nyap-tig-du on /view/nyap-tig-du/vobs type user (binmode)
> >
> >and the following directory structure:
> >/
> >/cygwin
> >/cygwin/bin
> >/view
> >/view/view0
> >/view/view0/vobs
> >/view/view0/vobs/vob0
> >/vobs
> >/vobs/vob1
> >
> >what should the behaviour of:
> >      chroot /view/view0
> >      ls /vobs
> >
> >be?
> >
> >I'm hoping the answer would be:
> >      vob0
> >
> >but what I'm getting is:
> >      vob1
> >
> >Is this correct behaviour (I haven't found any docs on this situation)?
> 
> What you document is entirely correct and quite logical AFAICS.  Now, if
> you typed "ls vobs" rather than "ls /vobs" and got the same result, that
> would be incorrect I believe.
> 
> Larry Hall                              lhall AT rfk DOT com
> RFK Partners, Inc.                      http://www.rfk.com
> 118 Washington Street                   (508) 893-9779 - RFK Office
> Holliston, MA 01746                     (508) 893-9889 - FAX
> 
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