File koan_fix_selinux_check.patch of Package cobbler

Index: cobbler-2.2.2/koan/app.py
===================================================================
--- cobbler-2.2.2.orig/koan/app.py
+++ cobbler-2.2.2/koan/app.py
@@ -1733,7 +1733,10 @@ class Koan:
 
                 # check whether we have SELinux enabled system
                 args = "/usr/sbin/selinuxenabled"
-                selinuxenabled = sub_process.call(args)
+                try:
+                    selinuxenabled = sub_process.call(args)
+                except OSError:
+                    selinuxenabled = -1
                 if selinuxenabled == 0:
                     # required context type
                     context_type = "virt_image_t"