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Date: Sun, 8 Apr 2007 22:14:23 -0400
From: Kris Kennaway <kris@obsecurity.org>
To: Juha Saarinen <juhasaarinen@gmail.com>
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Cc: freebsd-fs@freebsd.org, freebsd-current@freebsd.org,
	Pawel Jakub Dawidek <pjd@freebsd.org>
Subject: Re: ZFS: amd64, devd, root file system.
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On Mon, Apr 09, 2007 at 02:09:43PM +1200, Juha Saarinen wrote:
> On 4/9/07, Pawel Jakub Dawidek <pjd@freebsd.org> wrote:
> >3. It is now possible to have root file system on ZFS. You would still
> >   need UFS for your /boot/ file system.
>=20
> Stupid question perhaps, but I couldn't find the answer through
> searching... why is it not possible to boot directly from ZFS, only
> from UFS?

The boot blocks need to read the loader from the filesystem, which in
turns needs to load the kernel from the filesystem.  This involves
parsing the filesystem.

Kris

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