From owner-freebsd-stable@freebsd.org Sat Dec 17 08:25:20 2016 Return-Path: Delivered-To: freebsd-stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id BE47CC8173D for ; Sat, 17 Dec 2016 08:25:20 +0000 (UTC) (envelope-from elferdo@gmail.com) Received: from mail-io0-x22e.google.com (mail-io0-x22e.google.com [IPv6:2607:f8b0:4001:c06::22e]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 87771170B for ; Sat, 17 Dec 2016 08:25:20 +0000 (UTC) (envelope-from elferdo@gmail.com) Received: by mail-io0-x22e.google.com with SMTP id h30so116281472iod.2 for ; Sat, 17 Dec 2016 00:25:20 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=nci/CxY3yEVoqNeuBNAr0QJv5GaoyNUIkwKfIDo3prs=; b=pYp88lHFlT4U3GUIdo6NLtqqskVynIfyeoWyPCAdYGvZjoLOXqB/GMjNHWcKf93ogf c7SUA4qU5woIX52fNIS5bLdJNHP9OEkPDg0JMSCujaOqNhUV06RgqiPwlZOoXITKGwRo WS/SfV3wPdplQbybbwi9UEWL8DYm5og9Zpz4OodAihmVkXim48Uc/HePDXA9lKegbqjo ff78mGJqzCw3KEbfLuVaPavgpvgO3yqvO8LFTEUEgQI4k2KVmS6FoitUffHzUPX9JXKs Swqr+6bAoPwRNqG/gugwOHHjem8CW6xC3Oaj214qOckKJ19+6N1NG8DVIbaoC67Yr3V1 474g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=nci/CxY3yEVoqNeuBNAr0QJv5GaoyNUIkwKfIDo3prs=; b=PRBUDVExwfBNSGjeoa/eHJWUT5N3r5WyeI5u2pCHn9DOEJNxHtjtjMzWUW0x5mEbc4 OdxpGV7CZsM/ECiZCwqkcWGC0O+eoa5oqdZbmd6LWM3tWLO/ZSTPOyRGUxA/w+TuKHI9 mqokG0Ah5v/lDPDxWKFtNaQsftt809VQmO9M29hzXW6Wrn5VhsqbRa2XgB7Kj/IPPgY0 Tzx2ljPizvUHN34o0QaDxCrYmT8r2dqTk9YjEpaBtAsTlZLser9QF28W1ldnMBOTdSxP bz/qLtU4oxx4NKdPwE5FMEAr+czuy/4POVgYwYeCG6Izz9FYdbkzSEKEPD1h8qpROjKo N6sQ== X-Gm-Message-State: AIkVDXKSZ4uv8f89lMFiMgjNLhf8UuNk+9tdvclP390jT5YTKDtM+BmbNrwl6+ICXlJOvFmshIOz4HyWeuMxrQ== X-Received: by 10.107.154.18 with SMTP id c18mr6774872ioe.202.1481963119974; Sat, 17 Dec 2016 00:25:19 -0800 (PST) MIME-Version: 1.0 Received: by 10.36.43.67 with HTTP; Sat, 17 Dec 2016 00:25:19 -0800 (PST) In-Reply-To: <20161217170412.V26979@sola.nimnet.asn.au> References: <20161217170412.V26979@sola.nimnet.asn.au> From: =?UTF-8?Q?Fernando_Herrero_Carr=C3=B3n?= Date: Sat, 17 Dec 2016 09:25:19 +0100 Message-ID: Subject: Re: Upgrading boot from GPT(BIOS) to GPT(UEFI) To: Ian Smith Cc: freebsd-stable Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.23 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 17 Dec 2016 08:25:20 -0000 2016-12-17 7:12 GMT+01:00 Ian Smith : > On Fri, 16 Dec 2016 18:08:34 +0100, Fernando Herrero Carr=C3=B3n wrote: > > Hi everyone, > > Hi, > > you've had plenty of helpful responses, but nobody has commented on: > > > My only reason for wanting to boot with UEFI is faster boot, > > everything is working fine otherwise. > > I'm skeptical that UEFI boot would be any or noticeably faster than via > BIOS, but am interested in hearing of any experiences regarding that. > > cheers, Ian > My understanding is that BIOSes still boot through kind of a legacy 32-bit path and UEFI boots straight 64-bit with all the bells and whistles. In fact: % file /boot/loader /boot/loader: FreeBSD/i386 demand paged executable # Slow 32bit? % file /boot/loader.efi /boot/loader.efi: PE32+ executable (EFI application) x86-64, for MS Windows # Fast 64bit? Whether this amounts to faster boot, we'll see. Cheers, Fernando