Re: RAID Configuration For New Home Server

[Mark Knecht <markknecht@gmail.com>]

On Sun, Jun 6, 2010 at 4:23 AM, Leslie Rhorer <lrhorer@satx.rr.com> wrote:
<SNIP>
>
>        Oh, I almost forgot.  It may be of notable mention an array with a
> 1.0 superblock can be read as if it were an ordinary partition.  This means
> one can build a 1.0 superblock array containing a file system (ext2 may be
> the best choice in this case), but boot from the partition just as if it
> were not an array.  Once the system is booted, the array can be assembled
> and then /boot can be mounted.  This is because:
>
> 1.  The 1.0 superblock is at the *END* of the array.
>
> 2.  The file system when created only uses up the front part of the
> partition, leaving the superblock intact.
>
> 3.  GRUB does not require the file system to be mounted in order to read the
> kernel and the initrd.  (Actually, it could be made to work even if it did
> mount the partition, but since it does not, it makes it much easier.)
>
>        Indeed, this is the only way of which I know to boot to an array
> using GRUB legacy.
>
>

Actually that is of interest. If there's a way to use a single RAID
boot partition by itself once in awhile then there's value there if
something has gone wrong and you're just trying to get the machine up
and running.

Thanks!

- Mark
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