I'm installing Gentoo on a SOHO server with 4 500GB Hitachi hard drives.
I was able to boot from Live USB, created RAID-10 array /dev/md0 with the following command:
mdadm --create /dev/md0 --assume-clean --level=10 --raid-devices=4 /dev/sda /dev/sdb /dev/sdc /dev/sdd --metadata=0.90
After that I created three partitions with fdisk
Disk /dev/md0: 1000.2 GB, 1000214626304 bytes 2 heads, 4 sectors/track, 244193024 cylinders, total 1953544192 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 524288 bytes / 1048576 bytes Disk identifier: 0xdcf44765 Device Boot Start End Blocks Id System /dev/md0p1 * 2048 67583 32768 83 Linux /dev/md0p2 67584 8456191 4194304 82 Linux swap / Solaris /dev/md0p3 8456192 1953544191 972544000 83 Linux
Then I created filesystems with mkfs.ext2 /dev/md0p1, mkswap /dev/md0p2 and mkfs.ext4 /dev/md0p3 respectively:
/dev/md0p1 /boot ext2 defaults,noauto,noatime 0 2 /dev/md0p2 none swap sw 0 0 /dev/md0p3 / ext4 noauto,noatime 0 1
After that the whole installation process by handbook went just fine, I've even installed mdadm and lvm2 and added them to boot runlevel.
When it came to choosing bootloader I got stuck. I've heard that GRUB 0.97 is unable to handle RAID-10 arrays, the same is with LILO.
I've installed LILO, and after running /sbin/lilo it said that it is able to run from RAID-1 volumes only...
What should I do? I've reinstalled Gentoo three times already. First was with Fake H/W RAID, second with 1.2 Superblock version, third with 0.9 Superblock version.
I know that I'm somewhat close to reaching the goal, but I need help on choosing the right bootloader.
UPDATE: I was able to setup boot with GRUB2, but now I have another problem. During the boot I see this message:
Operating system missing
I guess it's because on a hardware level I just have 4 AHCI HDDs and BIOS doesn't know which one contains boot sector...