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 (8.12.11.20060308/8.12.11) with ESMTP id k4HJQOC2000543 for ; Wed, 17 May 2006 15:26:24 -0400 Received: from conterra.de (vvv.conterra.de [212.124.44.162]) by mx1.redhat.com (8.12.11.20060308/8.12.11) with ESMTP id k4HJQM9g031245 for ; Wed, 17 May 2006 15:26:22 -0400 Received: from localhost (unknown [127.0.0.1]) by conterra.de (-) with ESMTP id F231A1F404B for ; Wed, 17 May 2006 21:26:14 +0200 (CEST) Received: from conterra.de ([127.0.0.1]) by localhost (vvv.conterra.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 16364-04 for ; Wed, 17 May 2006 21:26:07 +0200 (CEST) Message-ID: <446B78CD.2090804@conterra.de> Date: Wed, 17 May 2006 21:26:05 +0200 From: =?windows-1252?Q?Dieter_St=FCken?= MIME-Version: 1.0 Subject: Re: [linux-lvm] "/boot" under LVM2 support in lilo or grub References: <000001c679bb$6946ca10$640a0a0a@laptopoptimus> In-Reply-To: <000001c679bb$6946ca10$640a0a0a@laptopoptimus> Content-Transfer-Encoding: 8bit Reply-To: LVM general discussion and development List-Id: LVM general discussion and development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , List-Id: Content-Type: text/plain; charset="utf-8"; format="flowed" To: LVM general discussion and development Greg Hartzog wrote: > I found from poking around the web that lilo, in theory, supports having > �/boot� under LVM2 control rather then existing as its own partition. this would be really nice to see. Most FAQs advise you to partition your disk. But my PV is about 5TB, which stupid DOS partitioning can't handle anyway. I think it should be possible to have a small LV containing the /boot directory. With my PE size of 32M, I don't even have to worry if it is contiguous, as it will fit into a single PE. The very first sector of a PV seems to be unused by LVM, thus a Lilo or Grub MBR may be installed. The remaining problem is to set up the mapping for LILO or Grub to load further stages and the kernel itself. I looked into the LILO sources and indeed found some fragments dealing with LVM when trying to get the physical sector numbers of the files to load (using FIBMAP). But I'm still searching where this is documented. The Grub development seems to be focused mainly on wired mutiboot problems with DOS and Windows XY. The whole system fundamentally depends on the concept of a partition table to solve problems I will never have :-) Dieter.