From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx3.redhat.com (mx3.redhat.com [172.16.48.32]) by int-mx1.corp.redhat.com (8.12.11.20060308/8.12.11) with ESMTP id k9B6aR3G032197 for ; Wed, 11 Oct 2006 02:36:27 -0400 Received: from alnrmhc14.comcast.net (alnrmhc14.comcast.net [206.18.177.54]) by mx3.redhat.com (8.13.1/8.13.1) with ESMTP id k9B6aLvb019439 for ; Wed, 11 Oct 2006 02:36:21 -0400 Message-ID: <452C90DC.1030409@Englisch.us> Date: Wed, 11 Oct 2006 02:36:12 -0400 From: Volker Englisch MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [linux-lvm] Boot fails after change of motherboard: No volume groups found 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="us-ascii"; format="flowed" To: linux-lvm@redhat.com I have a problem I'm trying to solve but I haven't found a solution. I am running FC4 (with AMD64) and was able to boot the machine without problems until Friday when I had to change my motherboard. Since then it appears that I'm unable to boot because the system can not find my LVM. I see this error message after grub selected the OS: Red Hat nash version 4.2.15 starting Reading all physical volumes. This may take a while ... No volume groups found Unable to find volume group "VolGroup00" and as a result a kernel panic. I can start the machine by using the installation disk and boot with 'linux rescue' and then I can see my volume and access the data. I have two SATA hard drives with a /boot partition and the volume group on the first one and the second HDD has just regular partitions: Filesystem Size Used Avail Use% Mounted on /dev/mapper/VolGroup00-LogVol04 15G 7.2G 6.4G 54% /var /dev/mapper/VolGroup00-LogVol03 34G 12G 20G 37% /backup /dev/mapper/VolGroup00-LogVol00 24G 7.9G 15G 35% / /dev/sda1 99M 29M 65M 31% /boot /dev/sdb3 138G 18G 113G 14% /free /dev/mapper/VolGroup00-LogVol02 29G 3.4G 24G 13% /home /dev/sdb2 46G 1.2G 43G 3% /home/public /dev/sdb1 46G 706M 43G 2% /home/mail Why would the boot process not find my volume group but does when I'm starting the OS with the rescue disk (or Knoppix)? -- Thanks Volker Englisch mailto:Volker@Englisch.us (h)