From owner-freebsd-questions@FreeBSD.ORG Tue Dec 6 03:40:17 2011 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id E81B41065675 for ; Tue, 6 Dec 2011 03:40:17 +0000 (UTC) (envelope-from perryh@pluto.rain.com) Received: from agora.rdrop.com (agora.rdrop.com [IPv6:2607:f678:1010::34]) by mx1.freebsd.org (Postfix) with ESMTP id C87308FC13 for ; Tue, 6 Dec 2011 03:40:17 +0000 (UTC) Received: from agora.rdrop.com (66@localhost [127.0.0.1]) by agora.rdrop.com (8.13.1/8.12.7) with ESMTP id pB63eAqp024103 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT); Mon, 5 Dec 2011 19:40:11 -0800 (PST) (envelope-from perryh@pluto.rain.com) Received: (from uucp@localhost) by agora.rdrop.com (8.13.1/8.12.9/Submit) with UUCP id pB63eA4w024102; Mon, 5 Dec 2011 19:40:10 -0800 (PST) Received: from fbsd81 ([192.168.200.81]) by pluto.rain.com (4.1/SMI-4.1-pluto-M2060407) id AA12078; Mon, 5 Dec 11 19:24:40 PST Date: Tue, 06 Dec 2011 02:23:57 -0800 From: perryh@pluto.rain.com To: dnelson@allantgroup.com Message-Id: <4edded3d.1lu8b8nzIWjHRsxo%perryh@pluto.rain.com> References: <20111205105130.161fc78a@mr129166> <20111205173845.GA53453@dan.emsphone.com> In-Reply-To: <20111205173845.GA53453@dan.emsphone.com> User-Agent: nail 11.25 7/29/05 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: freebsd-questions@freebsd.org, patfbsd@davenulle.org Subject: Re: Command which does not work anymore? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 06 Dec 2011 03:40:18 -0000 Dan Nelson wrote: > dd with a bs= option tells dd to use read() syscalls with a 10mb > size, but ssh is going to feed it data in much smaller chunks ... > Try using a smaller blocksize (8k or 4k), or use a buffering > program like ports/misc/team or misc/buffer just in front of your > dd command, so that dd always sees block-sized writes from its > stdin stream. or specify something along the lines of "obs=126b" instead of "bs=", so that dd will reblock the data itself.