Lewis Shobbrook wrote:

Hi All,

Wondering if anyone can comment on an easy way to get grub to update all 
components in a raid1 array.  I have a raid1 /boot with a raid10 /root and 
have previously used lilo with the raid-extra-boot option to install to boot 
sectors of all component devices.  With grub it appears that you can only 
update non default devices via the command line.  I like the ability to be 
able to type lilo and have all updated in one hit.  Is there a way to do this 
with grub?  

You only need to update stuff for grub once - when installing it.
And during installation, it's ok to run it multiple times, once for
each component device - not a big deal really.  Just like you will
partition your disks and install an MBR - once for each disk.

After installation, grub does not need to modify boot records - only
/boot/grub/menu.lst (whatever) file is updated to reflect your kernels,
and this is a normal file (grub will find it by its own, by properly
reading the filesystem).

/mjt