From owner-freebsd-usb@FreeBSD.ORG Mon Feb 7 07:56:43 2011 Return-Path: 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 86722106566C for ; Mon, 7 Feb 2011 07:56:43 +0000 (UTC) (envelope-from nagilum@nagilum.org) Received: from moutng.kundenserver.de (moutng.kundenserver.de [212.227.17.9]) by mx1.freebsd.org (Postfix) with ESMTP id F05948FC12 for ; Mon, 7 Feb 2011 07:56:42 +0000 (UTC) Received: from cakebox.homeunix.net (ip-109-85-29-116.web.vodafone.de [109.85.29.116]) by mrelayeu.kundenserver.de (node=mreu2) with ESMTP (Nemesis) id 0LqpCY-1QPHXc15la-00eYO6; Mon, 07 Feb 2011 08:56:34 +0100 Received: from cakebox.homeunix.net (localhost [127.0.0.1]) by cakebox.homeunix.net (Postfix) with ESMTP id D0454678DC; Mon, 7 Feb 2011 08:56:27 +0100 (CET) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on cakebox.tis X-Spam-Level: X-Spam-Status: No, score=-2.9 required=3.0 tests=ALL_TRUSTED,BAYES_00 autolearn=failed version=3.3.1 Received: by cakebox.homeunix.net (Postfix, from userid 80) id 03AF6678D4; Mon, 7 Feb 2011 08:56:25 +0100 (CET) Received: from cakebox.tis (cakebox.tis [10.1.1.1]) by 10.1.1.1 (Horde Framework) with HTTP; Mon, 07 Feb 2011 08:56:25 +0100 Message-ID: <20110207085625.66671jlvqglhs0bo@10.1.1.1> Date: Mon, 07 Feb 2011 08:56:25 +0100 From: Nagilum To: email@guice.ath.cx References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-2; DelSp="Yes"; format="flowed" Content-Disposition: inline Content-Transfer-Encoding: 7bit User-Agent: Dynamic Internet Messaging Program (DIMP) H3 (1.1.6) X-Provags-ID: V02:K0:ZUuQf0fs2sAahbQzPceBuvkgKf53ux27C60q0PeV+86 fWucYFNA7oNF5fS/PVhPa+7lvsJF7dXb1CqTrxobF8LPOqkkeZ 7RzMfighCxfCYBIyxbzIrgldHybdZWuRfVVXAr//U08bdkA512 wMY+CXzXMTm6xkb/j0a1xSsgkmJY2jGMf7qQJV9bc+vaKWXDYM IiYGTzDl7mREQoSXHL6dnrPT8BX4FVLGDmx9rTLS/Q= Cc: freebsd-usb@freebsd.org, Duane.Hesser@gmail.com Subject: Re: mount and umount large capacity external USB HDD (fstab) X-BeenThere: freebsd-usb@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: FreeBSD support for USB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 07 Feb 2011 07:56:43 -0000 ----- Message from email@guice.ath.cx --------- Date: Mon, 7 Feb 2011 00:39:08 -0500 From: email@guice.ath.cx Subject: Re: mount and umount large capacity external USB HDD (fstab) To: Duane.Hesser@gmail.com Cc: freebsd-usb@freebsd.org > Lastly, we don't fully understand, nor have we found an article or man > page that explains (in a way we can understand), how to use the 'bs= ' to > the 'dd' command. > > Within the 'man dd' the examples show 'bs=512' however, in the FreeBSD > Handbook 18.3.2.1 Using Slices, they demonstrate dd using 'bs=1k'; we > continue to be confused. Should we take this confusion to another list? > bs is the block size for the transfers. If you want to fill a harddisk you want to use a big blocksize such as bs=1m. When you have a smaller block size dd will be more busy pushing the blocks around which will only increase CPU load and lower your transfer rate. As for the unit following the number: Where sizes are specified, a decimal, octal, or hexadecimal number of bytes is expected. If the number ends with a ``b'', ``k'', ``m'', ``g'', or ``w'', the number is multiplied by 512, 1024 (1K), 1048576 (1M), 1073741824 (1G) or the number of bytes in an integer, respectively. Two or more numbers may be separated by an ``x'' to indicate a product. ----- End message from email@guice.ath.cx ----- ======================================================================== # _ __ _ __ http://www.nagilum.org/ \n icq://69646724 # # / |/ /__ ____ _(_) /_ ____ _ nagilum@nagilum.org \n +491776461165 # # / / _ `/ _ `/ / / // / ' \ Amiga (68k/PPC): AOS/NetBSD/Linux # # /_/|_/\_,_/\_, /_/_/\_,_/_/_/_/ Mac (PPC): MacOS-X / NetBSD /Linux # # /___/ x86: FreeBSD/Linux/Solaris/Win2k ARM9: EPOC EV6 # ======================================================================== ---------------------------------------------------------------- cakebox.homeunix.net - all the machine one needs..