From owner-freebsd-questions@freebsd.org Fri Mar 17 21:42:55 2017 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id A2D64D1040B for ; Fri, 17 Mar 2017 21:42:55 +0000 (UTC) (envelope-from steve@sohara.org) Received: from smtp1.irishbroadband.ie (smtp2.irishbroadband.ie [62.231.32.43]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 691E71BFA for ; Fri, 17 Mar 2017 21:42:54 +0000 (UTC) (envelope-from steve@sohara.org) Received: from [89.127.62.20] (helo=smtp.lan.sohara.org) by smtp1.irishbroadband.ie with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.76) (envelope-from ) id 1cozSY-0008Bl-3p for freebsd-questions@freebsd.org; Fri, 17 Mar 2017 21:30:54 +0000 Received: from [192.168.63.1] (helo=steve.lan.sohara.org) by smtp.lan.sohara.org with smtp (Exim 4.88 (FreeBSD)) (envelope-from ) id 1cozTK-0001QM-1y for freebsd-questions@freebsd.org; Fri, 17 Mar 2017 21:31:42 +0000 Date: Fri, 17 Mar 2017 21:30:46 +0000 From: Steve O'Hara-Smith To: freebsd-questions@freebsd.org Subject: Re: Second severe crash in six weeks Message-Id: <20170317213046.92362227450584694b653ed6@sohara.org> In-Reply-To: References: <20170315222221.GA18691@becker.bs.l> <20170317195043.GA5295@becker.bs.l> <20170317202959.GA1249@becker.bs.l> X-Mailer: Sylpheed 3.5.1 (GTK+ 2.24.29; amd64-portbld-freebsd10.3) X-Clacks-Overhead: "GNU Terry Pratchett" Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 17 Mar 2017 21:42:55 -0000 On Fri, 17 Mar 2017 15:21:28 -0600 (MDT) Warren Block wrote: > On Fri, 17 Mar 2017, Bertram Scharpf wrote: > > > On Friday, 17. Mar 2017, 13:56:54 -0600, Warren Block wrote: > >> On Fri, 17 Mar 2017, Bertram Scharpf wrote: > >> > >>> On Thursday, 16. Mar 2017, 08:59:44 +0000, Matthew Seaman wrote: > >>>> On 15/03/2017 22:22, Bertram Scharpf wrote: > >>> > >>> # dd if=/dev/zero of=usbstick.img bs=1M count=7552 > >> > >> A count should not be necessary, it will stop when it runs out of > >> input. > > > > The file name is "usbstick.img" but it is still a file. The > > count is the length of the USB stick I'm planning to dd to. > > This is still not needed. Either it will run out of file and end, or . I suggest you try dd if=/dev/zero of=somefile bs=1M and observe that it does not stop until the filesystem is full or you hit a hard quota limit. -- Steve O'Hara-Smith