[CentOS] Installing from a custom kernel

[Feizhou]

> I believe anaconda only supports installation on raid0 and raid1.
> 
> What you can do in your setup, since it is only a 4 disk setup is:
> 
> create 4 128MB raid partitions at the start of each drive for a
> /dev/md0 raid1 with 2 spares, create an ext3 fs for /boot on it
> 
> create 4 raid partitions of the remaining spaces, create a /dev/md1
> with 2 drives, and a /dev/md2 with 2 drives.
> 
> make /dev/md1 and /dev/md2 lvm volumes
> 
> create a volume group of /dev/md1 and /dev/md2, say called CentOS,
> 
> create a 'root' logical volume of say 16G with an interleave of 2,
> create a 'swap' logical volume of say 4G with an interleave of 2

One problem. /boot must be on its own unless grub in RHEL5/Centos 5 has 
lvm support. /boot needs to be on its own raid1 array.