Confused about RAID on initial install

[Carl Karsten]

David Woyciesjes wrote:
> Carl Karsten wrote:
> 
>> John Lyon wrote:
>>
>>> My box has three drives - an 80GB IDE I'd planned on using as file 
>>> storage,
>>> and two 9GB SCSI drives I'd planned on setting up with software RAID, 
>>> and
>>> using for the OS.
>>>
>>> Except - it appears I can't both use RAID, and configure the SCSI 
>>> drives for
>>> the root file system.
>>>
>>
>> What you can't do is have /boot on a raid volume.  grub doesn't 
>> support it.
>>
>> What you can do is trick it, but not using the installer.  What you 
>> end up with:  grub on a normal partition that gets used for raid1 once 
>> the OS boots.
>>
>> ^CarlFK
>>
>     Actually, you can have /boot on a RAID1 volume set. I did it last 
> weekend with Edubuntu (5.10). The only catch is you have to use lilo, 
> not grub. I put / on RAID1, swap on RAID1, and /home on RAID5.
> 

Oh yeah, I forgot about lilo.

Are you sure lilo is really using the raid device and not just one of the 
mirrors?  as in, if you get read errors on the first drive, will lilo know to 
read from the 2nd drive?

^C