Brent,

Software RAID support is usually implemented as kernel modules which are 
loaded after the root file system has been mounted. If you want to boot 
from a software RAID, you probably will need to build the RAID support 
into your kernel or you can load RAID modules in the initial boot RAM 
disk. The following may be of some help:

http://en.tldp.org/HOWTO/Software-RAID-HOWTO-7.html

Shannon


Brent L. Bates wrote:

>     I've come to the conclusion that the from scratch install GUI will not
>allow one to put a RAID on top of a RAID, even though the OS will allow it.  I
>am therefore trying to work around this problem.
>     I've got all 4 of my /boot partitions mirrored fine and I've got my 2
>sets of mirrored partitions set up and `formatted' as RAID partitions.  I took
>3 of my 4 swap partitions and striped them together as the / partition and did
>a partial install of SL 3.0.2.  After booting up, I finish the RAID 10 (1+0),
>create a file system on the device, and copy everything from the existing / to
>the new RAID 10 one.  All this seems to work fine.  My problem is now how do I
>switch the system from using the old / partition to the new one.
>     In my haste to get things up and running, I may have missed something
>simple and obvious, but I don't know what.  I've double checked that the
>/etc/raidtab file on the new root partition is set correctly and I edited the
>/boot/grub/grub.conf file so that `root=' points to the new /dev/md* device
>that is the new root device.  When I reboot, the system hangs.  I must be
>missing something obviously wrong here, but do not know what.  Can anyone give
>me any pointers on what I'm doing wrong?  All help would be greatly
>appreciated.  Thanks.
>
>  
>


-- 
____________________________________________

Shannon V. Davidson <[log in to unmask]>
Senior Software Engineer            Raytheon
636-479-7465 office         443-383-0331 fax
____________________________________________