Bug#485989: mdadm metadata issue

[Neil Brown]

On Monday August 31, robert$@debath.co.uk wrote:
> On Sun, 30 Aug 2009, martin f krafft wrote:
> 
> > Why specify it in the first place? I suggest to remove all metadata=
> > stuff from mdadm.conf. Inspect the /usr/share/mdadm/mkconf output.
> 
> I didn't.
> 
> It got added automatically...  Bug?

Bug somewhere.  No idea where though, mdadm definitely wouldn't emit
"metadata=0.9".

metadata=1 should work since 2.6.4, and possibly even before then.
metadata=0.9 would never work.  It is a version number, not a decimal
       number.  metadata=0.90 is correct and totally different from
       metadata=0.9

Do you have any idea what "upgrade script" put "metadata=0.9" in
there?

NeilBrown