grub failure to update MBR (using RAID and LVM)

[Shawn Iverson]

On Friday, February 18, 2005 10:19 AM, Paul wrote:
>
>On Thu, 2005-02-17 at 18:32 -0500, Shawn Iverson wrote:
>> Great, thanks!
>
>no worries :)
>

<snip>

>
>I thought specifying the device to grub when you run 
>grub-install took care of setting up the right 'root' device 
>for that drive if it is ever booted from - maybe not though?

Grub, the one currently included in the released fedora core 3 updates,
does not support grub-install with RAID.  It does not understand the
/dev/md* devices and fails with an error.  One must use the grub command
line to install it.  I'm not sure about newer releases of grub, though.
Perhaps someone else could throw in their two cents on this?

>> 
>> 3) Notice that I commented out the pretty splash image.  If 
>hd0 fails, 
>> where will the spash image come from?
>
>Wouldn't the pretty splash image be mirrored in the 
>/boot/grub/ directory of your second drive?
>

Yes, it will mirror because it is in the /dev/md0 device, but it is
"hard-wired" to (hd0,0) nonetheless:

splashimage=(hd0,0)/grub/splash.xpm.gz