diff --git a/interface/ri_data.py b/interface/ri_data.py
index 5071a83..7bef4f3 100644
--- a/interface/ri_data.py
+++ b/interface/ri_data.py
@@ -330,11 +330,15 @@ p_node - xml node (parent node) '''
     def get_size(dev):
         ''' calculate raid device size '''
         rd = Raid.dict[dev]
-        sz = min([ float(interface_partition.get_num(p_d.Partition.dict[p_d.Partition.get_disk_from_partition('/dev/'+d)]\
+        Min = min([ float(interface_partition.get_num(p_d.Partition.dict[p_d.Partition.get_disk_from_partition('/dev/'+d)]\
 				['partition']['/dev/'+d]['size'])) for d in rd.active_components])
-        if rd.level == '0': return str(interface_partition.pretty_unit(sz*len(rd.active_components)))
-        elif rd.level == '1': return str(interface_partition.pretty_unit(sz*len(rd.active_components)/2))
-        elif rd.level == '5': return str(interface_partition.pretty_unit(sz*(len(rd.active_components)-1)))
+        Sum = sum([ float(interface_partition.get_num(p_d.Partition.dict[p_d.Partition.get_disk_from_partition('/dev/'+d)]\
+				['partition']['/dev/'+d]['size'])) for d in rd.active_components])
+        #if rd.level == '0': return str(interface_partition.pretty_unit(Min*len(rd.active_components)))
+        #elif rd.level == '1': return str(interface_partition.pretty_unit(Min*len(rd.active_components)/2))
+        if rd.level == '0': return str(interface_partition.pretty_unit(Sum))
+        elif rd.level == '1': return str(interface_partition.pretty_unit(Min))
+        elif rd.level == '5': return str(interface_partition.pretty_unit(Min*(len(rd.active_components)-1)))
 
     @staticmethod
     def get_next_device():
diff --git a/new_partition/interface_partition.py b/new_partition/interface_partition.py
index 7ec2bf5..16a3360 100755
--- a/new_partition/interface_partition.py
+++ b/new_partition/interface_partition.py
@@ -247,6 +247,10 @@ def del_raid(dev):
 						raise StopIteration()
 	except StopIteration:
 		pass
+	try:
+		os.system('umount /dev/%s >/dev/null 2>&1' %(md))
+	except:
+		pass
 	try:
 		os.system('mdadm --stop /dev/%s >/dev/null 2>&1' %(md))
 	except:
diff --git a/text/ri_main.py b/text/ri_main.py
index 1a853b9..eccabe2 100644
--- a/text/ri_main.py
+++ b/text/ri_main.py
@@ -26,7 +26,7 @@ while True :
 		if init_flag:
 			ri_data.init()
 			init_flag = False
-		if len(ri_newt.Raid.init_from_internal()) < 2:
+		if len(ri_newt.Raid.init_from_internal()) < 2 and len(ri_data.Raid.dict) == 0:
 			if list[2] == 'raid':
 				del list[2]
 		else:
diff --git a/text/ri_newt.py b/text/ri_newt.py
index 3858944..3a514e2 100644
--- a/text/ri_newt.py
+++ b/text/ri_newt.py
@@ -417,6 +417,14 @@ class Raid(Screen):
 		if s == 0:
 			device = Screen.listbox.current()
 			del ri_data.Raid.dict[device]
+			try:
+				os.system('umount /dev/%s >/dev/null 2>&1' %(device))
+			except:
+				pass
+			try:
+				os.system('mdadm --stop /dev/%s >/dev/null 2>&1' %(device))
+			except:
+				pass
 		return s
 
 	def set_data(self):