Hi, Kevin, Glynn Thanks for you answers and questions :) >Glynn >Change the "root=..." setting in lilo.conf. > >Essentially, your problem is that you're trying to boot directly from >a software RAID device, but the device doesn't exist at boot time. > >You have to pass additional options to the kernel in order to tell it >which devices (partitions) make up the RAID array. See >Documentation/md.txt for details. My lilo.conf and /etc/raidtab (which is explained in md.txt) lilo.conf ________________ disk = /dev/md0 bios=0x80 sectors=63 heads=255 cylinders=553 partition=/dev/md1 start=63 boot=/dev/sda map=/boot/map prompt timeout=150 vga=normal # this CAN'T boot image=/boot/bzImage.0428 root = /dev/md0 label = LRH0427 read-only #this boots image=/boot/vmlinuz root = /dev/md0 label = LinuxRaid read-only #END. ________________ raidtab ________________ raiddev /dev/md0 raid-level 1 nr-raid-disks 2 chunk-size 32 nr-spare-disks 0 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 chunk-size 32 nr-spare-disks 0 persistent-superblock 1 device /dev/sda2 raid-disk 0 device /dev/sdb2 raid-disk 1 ________________ I can't find a mistake. If younitice sth please let me know >Kevin >Did you run "make modules" and "make >modulesinstall"? Yes. >If its not the kernel, its the way the boot >loader is configured to boot the new kernel. Is that the same? I've posted my lilo.conf, if you find sth please let me know :) And I run lilo, lilo -q, etc , after editing lilo.conf I'll try to do sth with initrd. May be the problem is here. I'll continue to search the net Have a nice weekend :) - : send the line "unsubscribe linux-admin" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html