From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from list by lists.gnu.org with archive (Exim 4.71)
	id 1VldMe-0001Ui-UX
	for mharc-grub-devel@gnu.org; Wed, 27 Nov 2013 06:33:05 -0500
Received: from eggs.gnu.org ([2001:4830:134:3::10]:38515)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <fabio.fantoni@m2r.biz>) id 1VldMX-0001K0-M7
	for grub-devel@gnu.org; Wed, 27 Nov 2013 06:33:03 -0500
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <fabio.fantoni@m2r.biz>) id 1VldMR-0005wk-HV
	for grub-devel@gnu.org; Wed, 27 Nov 2013 06:32:57 -0500
Received: from mail-we0-f182.google.com ([74.125.82.182]:65157)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <fabio.fantoni@m2r.biz>) id 1VldMR-0005wY-C2
	for grub-devel@gnu.org; Wed, 27 Nov 2013 06:32:51 -0500
Received: by mail-we0-f182.google.com with SMTP id q59so6584726wes.41
	for <grub-devel@gnu.org>; Wed, 27 Nov 2013 03:32:50 -0800 (PST)
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
	d=1e100.net; s=20130820;
	h=x-gm-message-state:message-id:date:from:user-agent:mime-version:to
	:cc:subject:references:in-reply-to:content-type
	:content-transfer-encoding;
	bh=ynadFh1GHzSse7QsBL1l15EYuvkalMI9Tp+dxXJCTQs=;
	b=EsAnjiJZ68sz4vJPU93quRCvjcA4IfX0wVLk+vpR016MobEvAkR5d4yKuN4aV+TIMT
	Tubt1swGT5X/TaYPwndfsI9J+RpFVU+4IZFSPAofmmRbW70qUnJ1Q0FD720SPwMwBhWe
	UIExNvJFt/QdIFnNvJjnlZH/Il4KMW1WRXIlFogunfieJD2POSjYuyTPuPi0DAStpWLE
	SQTvRW8zibfZwnT2NwPyZv8h7EnF7kvqvg+we5kDrklnC8EwxMAbespHLdvWcgnwLyaw
	jmzKCEO/nPPM8Gr8Wb/OoDomrckfuzXZ0/eUte/vBUvuqcfiHvhRjvgs0Go+Q4se7MC6
	jMBA==
X-Gm-Message-State: ALoCoQmZB/WEzwlillB4VwJJ6bdm/qBRJxvt88p9J/FlY6D8Hb5gnWAqNFC590dLQ9E+X7781L0r
X-Received: by 10.181.12.75 with SMTP id eo11mr22186723wid.37.1385551970459;
	Wed, 27 Nov 2013 03:32:50 -0800 (PST)
Received: from [192.168.1.26] (ip-73-126.sn2.eutelia.it. [83.211.73.126])
	by mx.google.com with ESMTPSA id
	uc18sm30777238wib.11.2013.11.27.03.32.49 for <multiple recipients>
	(version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128);
	Wed, 27 Nov 2013 03:32:49 -0800 (PST)
Message-ID: <5295D867.9050306@m2r.biz>
Date: Wed, 27 Nov 2013 12:32:55 +0100
From: Fabio Fantoni <fabio.fantoni@m2r.biz>
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64;
	rv:24.0) Gecko/20100101 Thunderbird/24.1.1
MIME-Version: 1.0
To: Andrey Borzenkov <arvidjaar@gmail.com>, 
	The development of GNU GRUB <grub-devel@gnu.org>
Subject: Re: [Xen-devel] pvgrub2 is merged
References: <527EA084.6000706@gmail.com>	<20131110084753.540b0107@opensuse.site>	<alpine.DEB.2.00.1311131848160.27356@procyon.dur.ac.uk>	<5283DD8F.5080103@gmail.com>	<alpine.DEB.2.00.1311141213350.11266@procyon.dur.ac.uk>	<alpine.DEB.2.00.1311141657530.28334@procyon.dur.ac.uk>	<52850918.1040406@gmail.com>	<alpine.DEB.2.00.1311141835430.28334@procyon.dur.ac.uk>	<52851D28.1090905@gmail.com>	<52851D77.6060203@gmail.com>	<alpine.DEB.2.00.1311142058000.23922@procyon.dur.ac.uk>	<5285440B.2040301@gmail.com>	<5293733B.3090604@m2r.biz>	<alpine.DEB.2.00.1311251913210.16022@procyon.dur.ac.uk>	<5294E157.90708@m2r.biz>
	<20131126221221.3fe316e3@opensuse.site>
In-Reply-To: <20131126221221.3fe316e3@opensuse.site>
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 8bit
X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic]
	[fuzzy]
X-Received-From: 74.125.82.182
Cc: =?UTF-8?B?VmxhZGltaXIgJ8+GLWNvZGVy?=
	=?UTF-8?B?L3BoY29kZXInIFNlcmJpbmVua28=?= <phcoder@gmail.com>,
	"xen-devel@lists.xen.org" <xen-devel@lists.xen.org>,
	M A Young <m.a.young@durham.ac.uk>
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: Wed, 27 Nov 2013 11:33:04 -0000

Il 26/11/2013 19:12, Andrey Borzenkov ha scritto:
> В Tue, 26 Nov 2013 18:58:47 +0100
> Fabio Fantoni <fabio.fantoni@m2r.biz> пишет:
>
>> I have also another question:
>> Is possible specify multiple path where search the grub.cfg for support
>> all mainly distributions and add a custom cfg path support taking it
>> from arguments?
>>
> You can do something like
>
> if search --set root --file /boot/grub2/grub.cfg ; then
>    configfile /boot/grub2/grub.cfg
> elif search --set root --file /boot/grub/grub.cfg ; then
>    configfile /boot/grub/grub.cfg
> elif ...
>    ...
> fi

I tried with this:
cat > boot/grub/grub.cfg <<EOF
insmod lvm
insmod ext2
insmod part_msdos
insmod part_gpt
if search --set root --file /boot/grub2/grub.cfg ; then
   configfile /boot/grub2/grub.cfg
elif search --set root --file /boot/grub/grub.cfg ; then
   configfile /boot/grub/grub.cfg
fi
EOF

But it's not working and it prints this line indefinitely in loop:
error: no such device: /boot/grub2/grub.cfg.

I also tried with only these lines instead of conditions:
search -s root -f /boot/grub/grub.cfg
configfile /boot/grub/grub.cfg

But all I get is the line "Welcome to GRUB!" followed by a white screen 
on xl console.

I don't know what else to try :(

Thanks for any reply.

>
> If xen provides way to pass arguments to kernel, it sure could be
> implemented as arguments to grub. Actually someone asked for a way to
> pass arguments to grub on EFI, so this could share implementation.