Fix refresh lvm.

pym/cl_fill_install.py

@@ -288,7 +288,7 @@ class fillVars(object, glob_attr):
         vgchange = getProgPath('/sbin/vgchange')
         if vgscan and vgchange:
             process(vgscan).success()
-            process(vgchange,'-a','-y','--refresh').success()
+            process(vgchange,'-ay','--refresh').success()
         devicesHash = self.Get('os_device_hash')
         sysBlockPath = '/sys/block'
         new_disks = reduce(lambda x,y:x+ ([y] if type(y) == str else y),