From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx1.redhat.com (mx1.redhat.com [172.16.48.31]) by int-mx1.corp.redhat.com (8.11.6/8.11.6) with SMTP id i1CNRti28923 for ; Thu, 12 Feb 2004 18:27:55 -0500 Received: from steelemr-loadb-nat-49.caltech.edu (SteeleMR-loadb-NAT-49.caltech.edu [131.215.49.69]) by mx1.redhat.com (8.11.6/8.11.6) with SMTP id i1CNRtb31085 for ; Thu, 12 Feb 2004 18:27:55 -0500 Received: from earth-dog (earth-dog [192.168.1.3]) by water-ox-postvirus (Postfix) with ESMTP id A9F5C26AD59 for ; Thu, 12 Feb 2004 15:27:49 -0800 (PST) Received: from caltech.edu (good.work.caltech.edu [131.215.164.3]) by water-ox.its.caltech.edu (Postfix) with ESMTP id BC2A026AD59 for ; Thu, 12 Feb 2004 15:27:48 -0800 (PST) Message-ID: <402C0BF4.3000102@caltech.edu> From: Ling Li MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [linux-lvm] LVM2 full disk & Grub Sender: linux-lvm-admin@redhat.com Errors-To: linux-lvm-admin@redhat.com Reply-To: linux-lvm@redhat.com List-Help: List-Post: List-Subscribe: , List-Id: LVM general discussion and development List-Unsubscribe: , List-Archive: Date: Thu Feb 12 18:27:01 2004 List-Id: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: linux-lvm@redhat.com When I was going to install a full-disk LVM2 PV on my hard disk (not for the root partition) with grub installed, I had very bad experience. I searched the internet for possible warnings. All I got were 1. LVM1 was known to be "unfriendly" to boot loader when the full disk is created as one PV. and 2. LVM2 solves this problem by allowing the label sector to be any of the first 4 sectors in the disk. However, grub needs more than 3 sectors (in my system, 16 sectors), which still conflicts with LVM2 when the full disk is used. So if you happen to want to use LVM2 and grub in the same disk, you have to create some partitions... NOT the full disk. I don't know why I couldn't find this kind of information on the internet or grub manual or LVM howto. In case there are also other users as "careless" as me, my this post might be useful. By the way, is there an LVM2 howto available somewhere? --Ling