From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from list by lists.gnu.org with archive (Exim 4.71) id 1Z20HC-0001uY-6v for mharc-grub-devel@gnu.org; Mon, 08 Jun 2015 12:51:54 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:59689) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z20H8-0001sk-Rt for grub-devel@gnu.org; Mon, 08 Jun 2015 12:51:51 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Z20H5-0000HE-L5 for grub-devel@gnu.org; Mon, 08 Jun 2015 12:51:50 -0400 Received: from mail-la0-x231.google.com ([2a00:1450:4010:c03::231]:33465) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z20H5-0000H0-DW for grub-devel@gnu.org; Mon, 08 Jun 2015 12:51:47 -0400 Received: by labpy14 with SMTP id py14so101635005lab.0 for ; Mon, 08 Jun 2015 09:51:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=date:from:to:cc:subject:message-id:in-reply-to:references :mime-version:content-type:content-transfer-encoding; bh=9a/CE3Y6QoSFxQ/4KB/opxYzLGlG97fpaLjvM09UrRQ=; b=N/PGqD9DA8HVd9wgmXR+n7VmP1oeJzxN29clVnMbp+PLr83AT1hjWkjOiwpKv0JeXz OZHHUX9Cdg+CIxjsCq5qxWfuAryYKJ7KpgeYlWx1q6ZzZr1a74bwM76aiRTGPW7T+QoY wMan3JSJiT1vvfACmMnmEvfkKGw4x2xQEe9X4iGxALp6mU8DgCuOD0XaMH+rHZJ//Bv7 vzfwxJ5nGfY9pfq6shMOIjSPJEiZ8pKITNp8q+hoNwsWHDOimvsvKH9WJAll7rEnCoqZ QG/16o64qvL1hDq+589L3VtOr8Tav7XRwMk8yvwjQHKxT72P6U3GkNmta9X9eb1AdEI0 PX0Q== X-Received: by 10.152.5.2 with SMTP id o2mr12791825lao.79.1433782306413; Mon, 08 Jun 2015 09:51:46 -0700 (PDT) Received: from opensuse.site (ppp91-76-14-38.pppoe.mtu-net.ru. [91.76.14.38]) by mx.google.com with ESMTPSA id k15sm756181laa.19.2015.06.08.09.51.45 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 08 Jun 2015 09:51:45 -0700 (PDT) Date: Mon, 8 Jun 2015 19:51:44 +0300 From: Andrei Borzenkov To: Ross Lagerwall Subject: Re: [PATCH] core/partmap: Add El Torito boot catalog parsing Message-ID: <20150608195144.69ed708c@opensuse.site> In-Reply-To: <1433672686-774-1-git-send-email-rosslagerwall@gmail.com> References: <1433672686-774-1-git-send-email-rosslagerwall@gmail.com> X-Mailer: Claws Mail 3.11.0 (GTK+ 2.24.28; x86_64-suse-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-Received-From: 2a00:1450:4010:c03::231 Cc: grub-devel@gnu.org X-BeenThere: grub-devel@gnu.org X-Mailman-Version: 2.1.14 Precedence: list Reply-To: The development of GNU GRUB List-Id: The development of GNU GRUB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 08 Jun 2015 16:51:52 -0000 =D0=92 Sun, 7 Jun 2015 11:24:46 +0100 Ross Lagerwall =D0=BF=D0=B8=D1=88=D0=B5=D1=82: > Add a module, part_eltorito, to allow parsing of the El Torito boot > catalog into partitions. This follows the El Torito Bootable CD-ROM > Format Specification Version 1.0 and the UEFI Specification 2.5. > In cases where the specification is unclear, the code follows the UEFI > reference implementation. >=20 > This is useful when booting CDs in UEFI mode. Before, GRUB would not be > able to use the embedded ESP from which it was executed, so it would > have a root and prefix set to the top level of the CD. This could result > in subtle configuration bugs, because the same ISO booted from a USB > disk (using isohybrid) would have its root and prefix set to the > embedded ESP because it can find it through the MBR. You can already access ESP on hybrid image using e.g. (cd0,msdos1); why is it not enough? > With this change, GRUB is able to access the embedded ESP and set its > root and prefix correctly when booting a CD in UEFI mode. It also > allows GRUB to access embedded floppy and HDD images. >=20