From owner-freebsd-geom@FreeBSD.ORG  Sun Mar 12 09:19:47 2006
Return-Path: <owner-freebsd-geom@FreeBSD.ORG>
X-Original-To: freebsd-geom@freebsd.org
Delivered-To: freebsd-geom@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 0111916A494
	for <freebsd-geom@freebsd.org>; Sun, 12 Mar 2006 09:19:47 +0000 (GMT)
	(envelope-from user@dhp.com)
Received: from shell.dhp.com (shell.dhp.com [199.245.105.1])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 79B86440FE
	for <freebsd-geom@freebsd.org>; Sun, 12 Mar 2006 04:39:50 +0000 (GMT)
	(envelope-from user@dhp.com)
Received: by shell.dhp.com (Postfix, from userid 896)
	id 7AD7B312F9; Sat, 11 Mar 2006 23:39:44 -0500 (EST)
Date: Sat, 11 Mar 2006 23:39:44 -0500 (EST)
From: Ensel Sharon <user@dhp.com>
To: freebsd-geom@freebsd.org
Message-ID: <Pine.LNX.4.21.0603112334510.8684-100000@shell.dhp.com>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Subject: GBDE mounts on top of other mounts (sshfs ?) fail ... please help
X-BeenThere: freebsd-geom@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: GEOM-specific discussions and implementations
	<freebsd-geom.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-geom>,
	<mailto:freebsd-geom-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-geom>
List-Post: <mailto:freebsd-geom@freebsd.org>
List-Help: <mailto:freebsd-geom-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-geom>,
	<mailto:freebsd-geom-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sun, 12 Mar 2006 09:19:47 -0000


I have successfully configured and used a GBDE.  I followed these
instructions:

http://0x06.sigabrt.de/howtos/freebsd_encrypted_image_howto.html

Easy.  No problem.

However, when I place the backing-store-file on a mounted sshfs
(fuse) volume, it no longer works.  Specifically, when I issue command:

gbde init /dev/md0 -i -L /etc/gbde/md0

and save the resulting file that opens in my editor (without making any
changes, as usual), after typing in my passphrase twice, I get this error:

Enter new passphrase:
Reenter new passphrase: 
gbde: write: Input/output error
#


Is this expected ?  Is this a specific problem with fuse-fs, or would this
fail if I tried to put the backing store on any kind of other mounted
abnormal filesystem ? (say an NFS mount, or another md-backed mount point)

Any comments ?  I would really like  to get this to work and would be
happy to run more tests if someone could suggest some.

thanks.