def getRoot(self,opts):                                                                                                                                           
         # If the conf file is inside the  installroot - use that.                                                                                                     
         # otherwise look for it in the normal root                                                                                                                    
+        if opts.conffile==None:                                                                                                                                       
+            opts.conffile = '/etc/yum/yum.conf'                                                                                                                       
+            if opts.installroot:                                                                                                                                      
+                if os.access(opts.installroot+opts.conffile, os.R_OK):                                                                                                
+                    opts.conffile = opts.installroot+opts.conffile                                                                                                    
+                elif os.access(opts.installroot+'/etc/yum.conf', os.R_OK):                                                                                            
+                    opts.conffile = opts.installroot+'/etc/yum.conf'                                                                                                  
         if opts.installroot:                                                                                                                                          
-            if os.access(opts.installroot+'/'+opts.conffile, os.R_OK):                                                                                                
-                opts.conffile = opts.installroot+'/'+opts.conffile                                                                                                    
-            elif opts.conffile == '/etc/yum/yum.conf':                                                                                                                
-                # check if /installroot/etc/yum.conf exists.                                                                                                          
-                if os.access(opts.installroot+'/etc/yum.conf', os.R_OK):                                                                                              
-                    opts.conffile = opts.installroot+'/etc/yum.conf'                                                                                                  
             root=opts.installroot                                                                                                                                     
         else:                                                                                                                                                         
             root = '/'