From mboxrd@z Thu Jan  1 00:00:00 1970
From: Richie <listmail@triad.rr.com>
Subject: Re: [PATCH] xend: update init script to avoid grep on
	non-existent file system
Date: Sat, 15 May 2010 12:00:37 -0400
Message-ID: <4BEEC525.6040405@triad.rr.com>
References: <C8140D61.145AC%keir.fraser@eu.citrix.com>
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To: Keir Fraser <keir.fraser@eu.citrix.com>
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Keir Fraser wrote:
> On 15/05/2010 05:16, "Richie" <listmail@triad.rr.com> wrote:
>
>   
>> I'm seeing a grep error during bare metal pvops kernel boot.  In the
>> init script, the previous checks will avoid/perform the /proc/xen mount
>> as appropriate, but then it does a grep on /proc/xen/capabilities
>> without ensuring that /proc/xen is actually mounted.  This is my attempt
>> (read: first patch :) ) to avoid it.
>>     
>
> Richie,
>
> Can you try adding the -s option to grep instead (i.e., grep -qs)? Should be
> a simpler way to achieve the same thing. I'll apply that instead if it works
> okay for you.
>
>  -- Keir
>
>
>   


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# HG changeset patch
# User Richie <listmail@triad.rr.com>
# Date 1273938512 14400
# Node ID cc3ed74cfef3f4504712d1d53c0af8c8940e9ab8
# Parent  baccadfd9418b8dee931945e5752cb118f5bf3cb
xend: suppress errors during capabilities check

diff -r baccadfd9418 -r cc3ed74cfef3 tools/hotplug/Linux/init.d/xend
--- a/tools/hotplug/Linux/init.d/xend	Fri May 14 08:05:05 2010 +0100
+++ b/tools/hotplug/Linux/init.d/xend	Sat May 15 11:48:32 2010 -0400
@@ -31,7 +31,7 @@
 	mount -t xenfs xenfs /proc/xen
 fi
 
-if ! grep -q "control_d" /proc/xen/capabilities ; then
+if ! grep -qs "control_d" /proc/xen/capabilities ; then
 	exit 0
 fi
 

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