From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: <98548902ed77db9bdc389a45753d6d3b@interlinx.bc.ca> Date: Sat, 2 Jun 2001 19:16:24 -0700 Message-ID: <20010602191624.E21442@linux.interlinx.bc.ca> Mime-Version: 1.0 Content-Disposition: inline From: "Brian J. Murrell" Subject: [linux-lvm] Migrating to an LVM system (boot/root) disk Sender: linux-lvm-admin@sistina.com Errors-To: linux-lvm-admin@sistina.com Reply-To: linux-lvm@sistina.com List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: List-Id: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-lvm@sistina.com I would like to migrate my system disk to using LVM, completely -- boot and root filesystems (as well as others). I have 0.9.1beta7 as well as the lilo patch posted previous to this list. Fortunately I have a new ide disk that is larger than my system disk currently so I can migrate to it. My current system disk is on /dev/hda and the new disk is on /dev/hdc. I have created one large /dev/hdc1 partition on the new disk. I have also created a PV, a VG and two LVs -- root and boot. I have mounted the lvs and copied my boot and root filesytems to the PVs. I also create the lvm initrd. So far so good. I edited my /etc/lilo.conf on the new root filesystem to change the following: ... -boot=/dev/hda +boot=/dev/hdc ... image=/boot/vmlinuz label=linux - root=/dev/hda5 + root=/dev/system/boot + initrd=/boot/initrd-lvm-2.4.5-1.1mdk.gz read-only However when I chroot to the root filesystem on the new disk and run the lilo command I get the following: # lilo Warning: /dev/hdc is not on the first disk Fatal: This version of LVM does not support boot LVs The warning I understand but it would seem there is some problem with what I have cobbled together here as my lilo does not like my LVM for booting. One other thing that has occurred to me is that the PV that underlies the VG was named as /dev/hdc1. I have a suspicion that I will not be able to simply move that drive from the secondary IDE bus to the primary IDE bus as it will then be known as /dev/sda1. Is this correct? Is there a better way to do this migration if my desire is really to have one large parition/PV for my VG rather than using a bunch of partitions/PV's? Any comments most welcome. Thanx much, in advance, b. P.S. I also have horrible nightsweats of trying to boot an LVM box from "emergency" boot media (diskettes, CDROM, etc.). :-) -- Brian J. Murrell