From 33d0a7d9fc40328e97df910a5602e60bf8005502 Mon Sep 17 00:00:00 2001
From: Martin Gracik <mgracik@redhat.com>
Date: Wed, 24 Aug 2011 08:38:59 +0200
Subject: [PATCH] Raise an exception if isohybrid cannot be run on x86

---
 src/pylorax/images.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/pylorax/images.py b/src/pylorax/images.py
index 7aae5539..75d38e06 100644
--- a/src/pylorax/images.py
+++ b/src/pylorax/images.py
@@ -569,11 +569,14 @@ class X86(object):
                              stdout=subprocess.PIPE)
         p.wait()
 
-        if os.path.exists(ISOHYBRID):
+        try:
             # run isohybrid
             cmd = [ISOHYBRID, boot_fpath]
             p = subprocess.Popen(cmd, stdin=subprocess.PIPE,
                                  stdout=subprocess.PIPE)
+        except OSError as e:
+            raise Exception("cannot run isohybrid: %s" % e)
+        else:
             p.wait()
 
         # run implantisomd5