[patch] NetBSD disklabel support for geom_bsd

Warner Losh imp at bsdimp.com
Fri Mar 17 23:31:12 UTC 2006


From: "Daniel Eriksson" <daniel_k_eriksson at telia.com>
Subject: RE: [patch] NetBSD disklabel support for geom_bsd
Date: Fri, 17 Mar 2006 20:47:08 +0100

> Dag-Erling Smørgrav wrote:
> 
> > It is still possible to create dangerously dedicated disks, btw, and
> > it is still possible to put a disklabel (or even a filesystem)
> > directly on a device.  GEOM means *more* freedom, not less.
> 
> I've been putting filesystems directly on devices for some time now. Are there any drawbacks to doing this?

You likely aren't putting them directly on devices, but rather using
FreeBSD's hack MBR which geom knows to ignore...  Disks w/o MBR can
confuse some BIOSes that try to be too smart.  Disks with our fake MBR
can confuse a different set of BIOSes...  The only sure way is to use
a real MBR.

Warner


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