From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1Q8FgQ-0005Oc-Cj for garchives@archives.gentoo.org; Fri, 08 Apr 2011 17:41:22 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 06D3C1C012; Fri, 8 Apr 2011 17:39:44 +0000 (UTC) Received: from mail-yi0-f53.google.com (mail-yi0-f53.google.com [209.85.218.53]) by pigeon.gentoo.org (Postfix) with ESMTP id CB4191C012 for ; Fri, 8 Apr 2011 17:39:44 +0000 (UTC) Received: by yia25 with SMTP id 25so2241245yia.40 for ; Fri, 08 Apr 2011 10:39:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:message-id:date:from:user-agent:mime-version:to :subject:references:in-reply-to:content-type :content-transfer-encoding; bh=TK0pIoHY23cGb+UptZ2diaQxGKHxo0ec06f6n6V6g4s=; b=VKC0Cvrzd439jlYJ8XSIEeW5fbosdJgf25dQHGPNBnaC+KeU9EHTn878Efd5MrT0Kt jm/9zgZvDU8nhJbAz6FlnUmy2/NES4SQamw2wdMvGuHhTm1oyzB5YzI5hh+i6PCHO8zd B+fAgZ5tAWOiUausOxZ+75Tyl0n3i1K+uxMng= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:subject:references :in-reply-to:content-type:content-transfer-encoding; b=msBbQ0vvs7Mq3z7asZRSx/6KXfMBczTBqaBLP3mrtSGeYXGFFmqKnGtzKKjTz+lBmf tCM7/n/6xbLU+Hy1VyuMaU+g9RxOSGAg2gfTxKd3vlvJeyQr+5Xv4p48mKGkhZlsp27y LlKeKRkloiEPUEXk7SsjpY4L7sZX5ovAgsuFg= Received: by 10.151.100.16 with SMTP id c16mr2307297ybm.405.1302284384201; Fri, 08 Apr 2011 10:39:44 -0700 (PDT) Received: from [192.168.2.5] (adsl-0-118-199.jan.bellsouth.net [65.0.118.199]) by mx.google.com with ESMTPS id r18sm1528571yba.11.2011.04.08.10.39.42 (version=SSLv3 cipher=OTHER); Fri, 08 Apr 2011 10:39:43 -0700 (PDT) Message-ID: <4D9F485D.2010300@gmail.com> Date: Fri, 08 Apr 2011 12:39:41 -0500 From: Dale User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.18) Gecko/20110325 Gentoo/2.0.13 SeaMonkey/2.0.13 Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] LVM for data drives but not the OS References: <4D9D9071.2050504@gmail.com> <20110407143351.EBADA1391@data.antarean.org> <4D9F3716.3090708@gmail.com> <201104081846.47629.alan.mckinnon@gmail.com> In-Reply-To: <201104081846.47629.alan.mckinnon@gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Archives-Salt: X-Archives-Hash: e146cb32858016885622bd52e28cffa2 Alan McKinnon wrote: > Apparently, though unproven, at 18:25 on Friday 08 April 2011, Dale did opine > thusly: > > >> I'm going to give this a stab here. I go buy a new drive. I use cfdisk >> to make it ready for LVM, the 8E thingy. >> > Yes > > >> I then tell LVM to make it a >> Physical Volume, either in whole or in part. >> > Yes > > >> I then tell LVM to make it >> a Volume Group >> > No. > > You add the PV to a Volume Group (which will be created if necessary) > > Yea, I didn't type that in the way I meant it. PV is the bottom level, then VG goes on top of that then the LV. I think I am typing that in right. Basically, I create the PV first, then the VG then the LV. < scratches head a bit> I think I get it but may need better wording. >> and if I already had a drive using LVM I could then add >> the new drive to it. >> > Yes. > > >> After that, I create Logical Volumes and put file >> systems on it for use sort of like the old partitions. >> > Yes. Once you have made the LV, you then do this: > > mkfs /dev/mapper/ > > instead of > > mkfs /dev/sda1 > > The kernel sees /dev/mapper/ as just another block device (aka > something it can mkfs) > > So when I get ready to make a file system, say ext3, then it would be mkfs.ext3 /dev/mapper/. Then it would be ready to put stuff on. >> Am I sort of getting on the right track? >> > Spot on > > >> Did someone mention a GUI for this? ^-^ >> > Piffle. GUIs for LVM confuse the issue. Stay away from them like the plague. > > That is likely a good idea too. I get used to the GUI then if the GUI can't work, maybe X won't come up or something, then I have no idea where to start. Good advice. Thanks. Dale :-) :-)