In article <20050620162858.GX7072@canolog.ninthwonder.com>,
Allen Briggs  <briggs@netbsd.org> wrote:

[stuff deleted]

>There are four possible solutions that I see to this:
>
>	* Pick the last device instead of the first
>	  However, there is a comment:
>		 * Use the first match anyway
>		 * because lower devices numbers are more likely to be the
>		 * boot device.
>
>	* Compare the disk size with the label size
>	  This requires some method of getting the disk size from the
>	  disk device.
>
>	* Teach the loader about these BIOS RAID things
>	  Then we have two places to add new formats--FreeBSD has
>	  a bunch of these.
>
>	* Mark devices that should not be included in the findroot
>	  process.  So the ld_ataraid bits would, in my case, mark
>	  wd0 and wd1 device structures when it attaches the ld
>	  made up of those two disks.  This could presumably be a
>	  new dv_flag (DVF_MEMBER ?).  If this could somehow be
>	  exposed to sysinst, it could remove the member units
>	  from the available installation media list, too (also
>	  useful for RAIDframe units).
>
>The last seems the least invasive.  Or have I overlooked another
>reasonable approach?

I think marking raid component devices so that they do not participate
as standalone devices is the easiest solution.

christos