The problem has been solved. The SCSI Low level adapter driver was not compiled into the kernel. Thank you. Regards, Ferenc > -----Original Message----- > From: Csuk, Ferenc > Sent: Montag, 26. November 2001 21:20 > To: 'linux-lvm@sistina.com' > Subject: Kernel panic during booting using root with LVM on top of > RAID > > Hi LVM experts, > > I need your help again, becuase I got an error message during booting and > I couldnīt find out the reason. I went through several times on the > archives but there is not exactly the answer I need. To make your help > easier and included lilo.conf, fstab, raidtab file, and df -k result, too. > > First of all the error message at boot time is: > > VFS: Cannot open root device "3a00" or 3a:00 > Please append a correct "root=" boot option > Kernel Panic: Unable to mount root fs on 3a:00 > My intention is to mirror every device using Linux software RAID, plus use > LVM on top of them. This is the point where we couldnīt find exact > documentation in either the Software RAID HowTO, or the LVM How-To. > We have the following configuration, including a brief summary about the > steps which we preformed. > I've got a system with four SCSI disks and I use Adaptec SCSI adapter. I > use LILO as the bootloader. We installed Suse 7.1 with Kernel 2.4.0 (LVM > and RAID support in the kernel not as module) using the lvm 1.0.1-rc4 > patches and lvm tools on /dev/sdd. Right now, we partitioned /dev/sda1 and > /dev/sdb1 with 50MB each, and we built out of them /dev/md0 with software > RAID-1. This we would like to use as /boot. The rest of the system on > /dev/sda and /dev/sdb we partitioned in one huge partition each and we > built out of them /dev/md1 with Software RAID-1 and we created vg00 with > lvm on top of it. Then we put a new root logical volume on > /dev/vg00/lvol1. We mounted on /mnt and copied / over to it just fine, > then edited /mnt/etc/fstab to put root on /dev/vg00/lvol1. (The rest of > the file systems we left temporary still on /dev/sdd like /usr, /var, > etc.) We created the new filesystems for /boot, / with mke2fs. > We used lvmcreate_initrd to make /boot/initrd-lvm-2.4.3.gz, and can boot > lilo with initrd. At boot time, it boots the kernel, loads the ram disk, > runs /linuxrc and when it tries to mount the root file system we get the > error message, see above. > > We think this is just a configuration issue, please check the files below > and give us some advice how to get the system up and running. > We would like to check the possibility if there is a way to elliminate > this small 50M partition for /boot and integrate that also into the big > one under LVM. > > Thank you in advance. > > Best Regards, > Ferenc Csuk > > > ----------------------- config files -------------------------- > > Content of /etc/lilo.conf: > > boot = /dev/sda > vga = normal > read-only > menu-scheme = Wg:kw:Wg:Wg > lba32 > prompt > timeout = 80 > message = /boot/message > > image = /boot/vmlinuz > label = linux > root = /dev/sdd1 > initrd = /boot/initrd > > image = /boot/vmlinuz > label = linux_lvm > root = /dev/vg00/lvol1 > initrd = /boot/initrd-lvm-2.4.0.gz > append = "ramdisk_size=8192" > optional > > image = /boot/vmlinuz_24 > label = linux_2.4 > root = /dev/sdd1 > initrd = /boot/initrd_24 > optional > > image = /boot/vmlinuz.suse > label = suse > root = /dev/sdd1 > initrd = /boot/initrd.suse > optional > > image = /boot/memtest.bin > label = memtest86 > > > Content of /etc/raidtab: > > raiddev /dev/md0 > raid-level 1 > nr-raid-disks 2 > nr-spare-disks 0 > chunk-size 4 > persistent-superblock 1 > device /dev/sda1 > raid-disk 0 > device /dev/sdb1 > raid-disk 1 > > raiddev /dev/md1 > raid-level 1 > nr-raid-disks 2 > nr-spare-disks 0 > chunk-size 4 > persistent-superblock 1 > device /dev/sda2 > raid-disk 0 > device /dev/sdb2 > raid-disk 1 > > Content of /mnt/etc/fstab: > > #/dev/sdd1 / ext2 defaults 1 1 > #/dev/sdd2 /boot ext2 defaults 1 2 > /dev/cdrom /cdrom auto ro,noauto,user,exec 0 0 > devpts /dev/pts devpts defaults 0 0 > /dev/fd0 /floppy auto noauto,user 0 0 > /dev/sdd8 /home ext2 defaults 1 2 > /dev/sdd7 /opt ext2 defaults 1 2 > proc /proc proc defaults 0 0 > /dev/sdd9 /tmp ext2 defaults 1 2 > /dev/sdd5 /usr ext2 defaults 1 2 > /dev/sdd6 /var ext2 defaults 1 2 > /dev/sdd3 swap swap defaults 0 2 > # > /dev/vg00/lvol1 / ext2 defaults 1 1 > /dev/md0 /boot ext2 defaults 1 2 > > >
