On Thu, 2006-10-12 at 12:09 -0400, Volker Englisch wrote: > I have a problem I'm trying to solve and I'm hoping someone here might > know a solution. > > I am running FC4 (with AMD64) and was able to boot the machine without > problems until last 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 > > Here is the content of my grub.conf > #boot=/dev/sda > default=0 > timeout=5 > splashimage=(hd0,0)/grub/splash.xpm.gz > hiddenmenu > password --md5 $1$n/QZG.cU$Cp6m9OIRXtaldLKLpJUE61 > title Fedora Core (2.6.17-1.2142_FC4) > root (hd0,0) > kernel /vmlinuz-2.6.17-1.2142_FC4 ro root=/dev/VolGroup00/LogVol00 > rhgb quiet > initrd /initrd-2.6.17-1.2142_FC4.img > title Fedora Core (2.6.17-1.2141_FC4) > root (hd0,0) > kernel /vmlinuz-2.6.17-1.2141_FC4 ro root=/dev/VolGroup00/LogVol00 > rhgb quiet > initrd /initrd-2.6.17-1.2141_FC4.img > > I already ran > $ grub-install /dev/sda > but that didn't change anything. > > I'm not even sure if this problem is related to grub or to another > process later in the boot sequence. > > Thanks for your help. > > -- > Thanks > > Volker Englisch > > mailto:Volker@xxxxxxxxxxx (h) > Try for changing the harddisk settings in the BIOS, I remember had this trouble too and I solve this way. best luck Teo Fonrouge