Re: vnd geometry

[Patrick Welche <prlw1%cam.ac.uk@localhost>]

On Tue, Apr 29, 2014 at 04:08:02PM +0200, J. Hannken-Illjes wrote:
> On 29 Apr 2014, at 15:19, Patrick Welche <prlw1%cam.ac.uk@localhost> wrote:
> 
> <snip>
> > 
> > One oddity while perusing the code is:
> > 
> >        /*
> >         * Use pseudo-geometry specified.  If none was provided,
> >         * use "standard" Adaptec fictitious geometry.
> >         */
> >        if (vio->vnd_flags & VNDIOF_HASGEOM) {
> > 
> >            memcpy(&vnd->sc_geom, &vio->vnd_geom,
> >                sizeof(vio->vnd_geom));
> > 
> > How can VNDIOF_HASGEOM ever be set?
> 
> With <geomspec> from vnconfig(8)?

Ah thanks - I just used fxr.watson.org...

It seems that disklabel and plist agree at least for sizes which are
whole numbers of megabytes, e.g.,

bytes:
disklabel        plist backing_file
 10485760     10485760     10485760  =  A00000 
136314880    136314880    136314880  = 8200000
 12761600     12582912     12761760 (this row in hex below)
   C2BA00       C00000       C2BAA0


Cheers,

Patrick