From owner-freebsd-current@freebsd.org Wed Sep 19 14:42:24 2018 Return-Path: Delivered-To: freebsd-current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 8C7B8109D770 for ; Wed, 19 Sep 2018 14:42:24 +0000 (UTC) (envelope-from greg@unrelenting.technology) Received: from hraggstad.unrelenting.technology (hraggstad.unrelenting.technology [71.19.146.151]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "hraggstad.unrelenting.technology", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 12867838EE for ; Wed, 19 Sep 2018 14:42:23 +0000 (UTC) (envelope-from greg@unrelenting.technology) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=unrelenting.technology; h=date:from:subject:to:message-id; s=default; bh=TKHO7Z8cAXotV4SCJL8JobBDShmlj5FrL63q6RuxtT4=; b=cdDB9Z6AH/19e5stJqYC7st6SsOCHxqquOaxdz65hWxHh6jTIGbCsvJKVjjOgqwn0oH99m78P6OIycnUSpX2XZErfdHXIoHYyPHRcoDyWnrzQ8CmENrYihaqFMpw5O1nklhsK4DqXNDaD+UHzNQvH7sslKSXEPvQvgU/BAVlL3g= Received: by hraggstad.unrelenting.technology (OpenSMTPD) with ESMTPSA id 5145138f TLS version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO; Wed, 19 Sep 2018 14:42:08 +0000 (UTC) Date: Wed, 19 Sep 2018 17:42:01 +0300 From: Greg V Subject: Re: FreeBSD EFI projects To: "Rodney W. Grimes" Cc: Rebecca Cran , Konstantin Belousov , Warner Losh , FreeBSD Current Message-Id: <1537368121.5568.1@hraggstad.unrelenting.technology> In-Reply-To: <201809191434.w8JEY41Z024163@pdx.rh.CN85.dnsmgr.net> References: <76404aad-40f3-e3ad-35b1-949fb5afb086@bluestop.org> <201809191434.w8JEY41Z024163@pdx.rh.CN85.dnsmgr.net> X-Mailer: geary/0.12.2 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 19 Sep 2018 14:42:24 -0000 On Wed, Sep 19, 2018 at 5:34 PM, Rodney W. Grimes wrote: >> On 9/18/18 4:11 AM, Greg V wrote: >> >> > >> > I can confirm that the kernel already worked fine when booted from >> > 32-bit EFI. >> > >> > I booted an old Mac into HardenedBSD using a 32-bit-EFI build of >> GRUB2 :) >> >> >> Was that a 64-bit version of FreeBSD? My understanding is the 32-bit >> FreeBSD boots fine, but 64-bit needs work. > > You would be hard pressed to find a system with a 64 bit CPU that > could run 64 bit FreeBSD that had a 32 bit EFI implementation. Mac mini 2006 with a Core2Duo instead of the stock CoreDuo (and the 2007 model's firmware flashed, but I don't think that impacts FreeBSD). And probably just the 2007 model as well :) Also, IIRC there were some Intel Atom tablets with 32-bit EFI.