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Date:      Tue, 27 Sep 2011 14:38:55 -0700
From:      Doug Barton <dougb@FreeBSD.org>
To:        Peter Jeremy <peterjeremy@acm.org>
Cc:        freebsd-current@freebsd.org
Subject:   Re: Experiences with FreeBSD 9.0-BETA2
Message-ID:  <4E82426F.9030904@FreeBSD.org>
In-Reply-To: <20110927212439.GB82240@server.vk2pj.dyndns.org>
References:  <201109260927.02540.jhb@freebsd.org> <alpine.GSO.1.10.1109261359100.882@multics.mit.edu> <201109262035.OAA17199@lariat.net> <CACqU3MUZ_ez-KMGVR33Aqz31i9cE%2BW7ANtvhqy3D%2BiPfroFpxA@mail.gmail.com> <alpine.GSO.1.10.1109261941050.882@multics.mit.edu> <CAJ-Vmon39xorsCZQ9u8D310t-T%2BoDJm2s2aRbJQ2UH5u_QwiXw@mail.gmail.com> <CACqU3MWtx3JjvpXrQtqjpYbsuytGj5YBA52CEujgw9dZE5Z1Ug@mail.gmail.com> <20110927021559.GF57708@in-addr.com> <CAJ-Vmo=7VvvBNo12Cx062coqDLJp5NCxfkyPbSZ6dGURwoPWaw@mail.gmail.com> <CAN6yY1uM6p21D=9MhAJ47hVWqDyh2bs6Ej_-X-sYBVwRvryfGw@mail.gmail.com> <20110927212439.GB82240@server.vk2pj.dyndns.org>

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On 09/27/2011 14:24, Peter Jeremy wrote:
> On 2011-Sep-26 21:29:18 -0700, Kevin Oberman <kob6558@gmail.com> wrote:
>> MBR allows 4 slices (which Windows and most of the world call
>> partitions). Windows also
>> allows the creation of "Extended Partitions, but FreeBSD does not
>> support these. They result
>> in device named with an 's' for slice. E.g. "da0s1".
> 
> To be pedantic, the FreeBSD bootcode does not support _booting_ off
> extended partitions.  Once it is booted, FreeBSD has no problems
> accessing them. 

Correct.

> (I don't know if alternative bootcode such as grub
> can boot FreeBSD within an extended partition).

Well the installer won't even look there, so you'd have to do a fair bit
of gymnastics to even get it there in the first place. And given the
difficulty that grub sometimes has with booting it from primary
partitions I wouldn't be hopeful, even if the FreeBSD late-stage boot
loader could do it, which I highly doubt.

-- 

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