From owner-freebsd-usb@FreeBSD.ORG  Thu Aug 28 08:17:40 2008
Return-Path: <owner-freebsd-usb@FreeBSD.ORG>
Delivered-To: freebsd-usb@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id C2B291065670
	for <freebsd-usb@freebsd.org>; Thu, 28 Aug 2008 08:17:40 +0000 (UTC)
	(envelope-from on@cs.ait.ac.th)
Received: from mail.cs.ait.ac.th (mail.cs.ait.ac.th [192.41.170.16])
	by mx1.freebsd.org (Postfix) with ESMTP id 1EB828FC2D
	for <freebsd-usb@freebsd.org>; Thu, 28 Aug 2008 08:17:39 +0000 (UTC)
	(envelope-from on@cs.ait.ac.th)
Received: from banyan.cs.ait.ac.th (banyan.cs.ait.ac.th [192.41.170.5])
	by mail.cs.ait.ac.th (8.13.1/8.13.1) with ESMTP id m7S7ku9N058690
	(version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO)
	for <freebsd-usb@freebsd.org>; Thu, 28 Aug 2008 14:46:56 +0700 (ICT)
	(envelope-from on@banyan.cs.ait.ac.th)
Received: (from on@localhost)
	by banyan.cs.ait.ac.th (8.14.2/8.12.11) id m7S7kuJV018511;
	Thu, 28 Aug 2008 14:46:56 +0700 (ICT)
Date: Thu, 28 Aug 2008 14:46:56 +0700 (ICT)
Message-Id: <200808280746.m7S7kuJV018511@banyan.cs.ait.ac.th>
From: Olivier Nicole <on@cs.ait.ac.th>
To: freebsd-usb@freebsd.org
X-Virus-Scanned: on CSIM by amavisd-milter (http://www.amavis.org/)
Subject: How to eject an USB disk on FreeBSD
X-BeenThere: freebsd-usb@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: FreeBSD support for USB <freebsd-usb.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-usb>,
	<mailto:freebsd-usb-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-usb>
List-Post: <mailto:freebsd-usb@freebsd.org>
List-Help: <mailto:freebsd-usb-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-usb>,
	<mailto:freebsd-usb-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 28 Aug 2008 08:17:40 -0000

Hello,

Is there a command in FreeBSD that ejects a USB disk like in Windows?

I mount the USB disk with automount daemone (amd).

I have a script that access this disk and force an umount at the end
of the script.

But anyone accessing the disk will have amd re'mount the disk and at
the time I unplu the disk, problem may occur because the disk is still
mounted and in use.

I would like to have a command that makes the disk/USB port physically
inaccessible, so at the end of the script a user cannot access the
disk again.

Like in Windows after stopping a USB mass storage device, one has to
unplg and replug the disk if he wants to access it again.

TIA,

Olivier