From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from list by lists.gnu.org with archive (Exim 4.71)
	id 1YlVP4-0006hn-Td
	for mharc-grub-devel@gnu.org; Fri, 24 Apr 2015 00:39:50 -0400
Received: from eggs.gnu.org ([2001:4830:134:3::10]:56138)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <hpa@zytor.com>) id 1YlVP2-0006h4-70
	for grub-devel@gnu.org; Fri, 24 Apr 2015 00:39:48 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <hpa@zytor.com>) id 1YlVP1-0006Qn-AY
	for grub-devel@gnu.org; Fri, 24 Apr 2015 00:39:48 -0400
Received: from terminus.zytor.com ([2001:1868:205::10]:53590
	helo=mail.zytor.com) by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <hpa@zytor.com>) id 1YlVP1-0006Qf-1g
	for grub-devel@gnu.org; Fri, 24 Apr 2015 00:39:47 -0400
Received: from tazenda.hos.anvin.org
	([IPv6:2601:9:7280:900:e269:95ff:fe35:9f3c]) (authenticated bits=0)
	by mail.zytor.com (8.14.8/8.14.5) with ESMTP id t3O4dhgj023181
	(version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO);
	Thu, 23 Apr 2015 21:39:43 -0700
Message-ID: <5539C90A.9000608@zytor.com>
Date: Thu, 23 Apr 2015 21:39:38 -0700
From: "H. Peter Anvin" <hpa@zytor.com>
User-Agent: Mozilla/5.0 (X11; Linux x86_64;
	rv:31.0) Gecko/20100101 Thunderbird/31.5.0
MIME-Version: 1.0
To: Andrei Borzenkov <arvidjaar@gmail.com>
Subject: Re: [syslinux] Using memdisk with grub2 and a gzip-compressed ISO
References: <C7ACECCE-ACED-44D0-BD29-22D9D8FB9941@jabberwocky.com>	<55396F5E.7090303@zytor.com>	<20150424061443.3d80329c@opensuse.site>	<5539B8C1.4030401@zytor.com>
	<20150424064128.71489695@opensuse.site>
In-Reply-To: <20150424064128.71489695@opensuse.site>
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit
X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address
	(bad octet value).
X-Received-From: 2001:1868:205::10
Cc: grub-devel@gnu.org, David Shaw <dshaw@jabberwocky.com>, syslinux@zytor.com
X-BeenThere: grub-devel@gnu.org
X-Mailman-Version: 2.1.14
Precedence: list
Reply-To: The development of GNU GRUB <grub-devel@gnu.org>
List-Id: The development of GNU GRUB <grub-devel.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/grub-devel>,
	<mailto:grub-devel-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/archive/html/grub-devel>
List-Post: <mailto:grub-devel@gnu.org>
List-Help: <mailto:grub-devel-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/grub-devel>,
	<mailto:grub-devel-request@gnu.org?subject=subscribe>
X-List-Received-Date: Fri, 24 Apr 2015 04:39:49 -0000

On 04/23/2015 08:41 PM, Andrei Borzenkov wrote:
> 
> CRC+length (in case of gzip) are located immediately after compressed
> stream. After stream is decompressed you get location where it ends and
> automatically where length is located.
> 

I know.  One could decompress it twice, but why?

	-hpa