From owner-freebsd-hackers@FreeBSD.ORG  Wed Apr 18 09:19:09 2012
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Date: Wed, 18 Apr 2012 12:19:01 +0300
From: Andriy Gapon <avg@FreeBSD.org>
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To: Bob Friesenhahn <bfriesen@simple.dallas.tx.us>
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Cc: freebsd-fs@FreeBSD.org, freebsd-hackers@FreeBSD.org
Subject: Re: [review request] zfsboot/zfsloader: support accessing
 filesystems within a pool
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on 15/04/2012 04:01 Bob Friesenhahn said the following:
> It would be nice if the updated FreeBSD bootloader could have the ability to
> boot both Solaris and FreeBSD root filesystems in the same pool so that one
> could switch between several zfs-based operating systems without needing to use
> a different partition for each one. Is this within the bounds of possibility or
> a totally irrational thought?

I can not assess feasibility of such a project.  Just want to note that
ultimately it's the code that gets booted, not filesystems.  I have an
impression that Solaris boot archive is quite different from how FreeBSD kernel
gets booted.

-- 
Andriy Gapon