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Date: Thu, 27 Jul 2006 23:11:38 +0200
From: Joerg Sonnenberger <joerg@britannica.bec.de>
To: freebsd-hackers@freebsd.org
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Subject: Re: disklabel differences FreeBSD, DragonFly
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On Thu, Jul 27, 2006 at 10:25:28PM +0200, Andreas Klemm wrote:
> On Thu, Jul 27, 2006 at 02:21:59PM +0200, Joerg Sonnenberger wrote:
> > On Thu, Jul 27, 2006 at 08:39:37AM +0200, Andreas Klemm wrote:
> > > Later I wanted to mount the dfly filesystems on FreeBSD 6.1,
> > > of course still my main Unix ;-) But it wasn't possible.
> > 
> > DragonFly disklabels allow 16 entries by default, FreeBSD still limits
> > it to 8. That's why you can't read it directly.
> > 
> 
> Hmm, for the sake of compatibility, wouldn't it have been an option,
> to add this extra bit to the end of the struct ?

The layout of the struct has not changed. FreeBSD simply rejects the
disk label because the number of entries is too large.

Joerg