From owner-freebsd-stable@FreeBSD.ORG Tue Apr 26 02:15:58 2011 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id F2E47106564A for ; Tue, 26 Apr 2011 02:15:58 +0000 (UTC) (envelope-from m.e.sanliturk@gmail.com) Received: from mail-qy0-f175.google.com (mail-qy0-f175.google.com [209.85.216.175]) by mx1.freebsd.org (Postfix) with ESMTP id A39B38FC14 for ; Tue, 26 Apr 2011 02:15:58 +0000 (UTC) Received: by qyk35 with SMTP id 35so1094213qyk.13 for ; Mon, 25 Apr 2011 19:15:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=DgAthPw1vsjtzl3Stt9xNlgDh/ZfObTccqwHMewgLf0=; b=RfxvdN1GKgXeaXVllOkdNiE9UIXjnYuWAuh5bJpRXhyYJ7S9FGg3CYmT1RViG7Fi4F GtmxvTSUSfzqDR/PJyN/iIIsO96uLWXojmRWmbvAsjTCsA2gxiGR0xIfxP0FyNlp9WeE 2nsQe4pTWJVbjEGGLBFdzuHPEK61x9O4drxto= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=gagatIhwhuMKoU8sYX7a+kUOZG0s3CvlylSplbZwYSqDYc/hktXoa/MVzlg/pzikpJ +W4aGwdqZfshpQ/tNEWcMbgdbVzDMigxSmlNMmMf/YJH6n+oK9U7e+IfT5zhlggriCD0 MEmsYikSghYTfKIMvVe37BiZXbIWV3yioWvho= MIME-Version: 1.0 Received: by 10.224.189.9 with SMTP id dc9mr144840qab.11.1303784157816; Mon, 25 Apr 2011 19:15:57 -0700 (PDT) Received: by 10.224.179.212 with HTTP; Mon, 25 Apr 2011 19:15:57 -0700 (PDT) In-Reply-To: <4DB60274.60701@chillt.de> References: <4DB4589B.2020909@ksu.ru> <4DB45D6C.20203@chillt.de> <20110424182456.9DD03589@server.theusgroup.com> <4DB46ED4.2010500@chillt.de> <20110425004818.GA22579@icarus.home.lan> <4DB51F27.5010508@chillt.de> <20110425184728.C73992@sola.nimnet.asn.au> <4DB56CDA.50504@chillt.de> <20110425232429.N85801@sola.nimnet.asn.au> <4DB57F45.4080107@chillt.de> <20110425141643.GA38380@icarus.home.lan> <4DB583E9.8080507@chillt.de> <20110425234117.d1476c95.torfinn.ingolfsen@broadpark.no> <4DB60274.60701@chillt.de> Date: Mon, 25 Apr 2011 22:15:57 -0400 Message-ID: From: Mehmet Erol Sanliturk To: Bartosz Fabianowski Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: Torfinn Ingolfsen , freebsd-stable@freebsd.org Subject: Re: System extremely slow under light load X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 26 Apr 2011 02:15:59 -0000 On Mon, Apr 25, 2011 at 7:23 PM, Bartosz Fabianowski wrote: > Have you tried just using dd to copy the iso image of a Ubuntu / Linux >> LiveCD to a suitably sized USB memory stick? >> It has worked for me in the past. >> > > As per Mehmet's tip, I did just that with a Debian image. If it works for > Ubuntu images as well then I really wonder why the only documented way is > via Unetbootin. > > - Bartosz > _______________________________________________ > To reduce the number of files to maintain , some Linux distributions started to generate .iso files both for CD/DVD burning and USB stick dd copying . Such distributions are mostly called "dual" or "hybrid" in their names with .iso extension to distinguish them from only CD/DVD burning .iso files . If an .iso is named for USB without "dual" or "hybrid" names , it is very likely that it is prepared in such a way for USB dd copying . With respect to my opinion , most .iso files which they are prepared for CD/DVD burning will be able to boot and install from dd copied USB sticks because .iso is a FILE format , NOT a DEVICE format . The problem is not the file format but the ability of the operating system to use devices . For example , I am seeing operating systems in CD , they are booting from DVD drive ( because BIOS is loading their kernel , etc. ) but failing to install because their kernels , etc. are NOT able to use the DVD drive when they are taking the control of the PC . Thank you very much . Mehmet Erol Sanliturk