asr: Invalid magic number in RAID table; saw 0x0, expected 0x900765C4 on sdb

[David Rice]

>On Tue, May 29, 2007 at 05:23:05PM -0400, David Rice wrote:
> > I am trying to help a user who is getting the above error message. Can
> > someone take a look at this?
> > http://ubuntuforums.org/showthread.php?t=456042
> >
> > They have posted a dump of the metadata in the forums as well as various
> > commands.
>
>The message indicates that the asr (Adaptec HostRAID) driver in dmraid
>can't find a HostRAID RAID header on the disk.  This is a benign error
>during RAID device discovery, though I concede that the error message is
>not clear about that.  In any case, the user's machine uses
>/dev/mapper/isw_blahblahblah, which indicates that his system is really
>using Intel Software RAID, so the error message is not what's causing
>his problem.

Maybe this "error" message should only show up with -verbose or -debug ? It 
is confusing for newbies (isn't everything?)

>(I believe the follow-up postings on that URL about dm locking down the
>disk partitions being the reason why he can't mount /dev/sdXY are
>correct, though I don't use bleeding-edge Ubuntus. :))

dmraid is not recognizing any partitions on /dev/mapper/nvidia_bcacibbh - 
but he says there is one big ntfs partition there. maybe it is not a raid 
volume at all?

>--D

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