From 3bc6228b9748ec10838c7f1ed61f553f575dcf9c Mon Sep 17 00:00:00 2001
From: Daniel Hokka Zakrisson <daniel@hozac.com>
Date: Thu, 10 Jan 2013 18:22:01 +0100
Subject: [PATCH] Handle unreadable /proc/xen/capabilities

Fixes #1854.
---
 library/setup | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/library/setup b/library/setup
index bd0dfc4a989..ce0bb9a7521 100644
--- a/library/setup
+++ b/library/setup
@@ -713,10 +713,12 @@ class LinuxVirtual(Virtual):
         if os.path.exists("/proc/xen"):
             self.facts['virtualization_type'] = 'xen'
             self.facts['virtualization_role'] = 'guest'
-            if os.path.exists('/proc/xen/capabilities'):
+            try:
                 for line in open('/proc/xen/capabilities'):
                     if "control_d" in line:
                         self.facts['virtualization_role'] = 'host'
+            except IOError:
+                pass
             return
  
         if os.path.exists('/proc/vz'):