diff --git a/interface/ri_oper.py b/interface/ri_oper.py
index 20b9c7b..e127a8c 100644
--- a/interface/ri_oper.py
+++ b/interface/ri_oper.py
@@ -17,6 +17,7 @@
 #       Ling Fen        2010-09-04              create
 
 import ri_data
+import ri_dep
 import os
 import subprocess
 
@@ -173,17 +174,7 @@ class InstallPkg(Operation):
 		self.return_value[3]=("package in source doesn't exist",u"软件包不存在")
 	
 	def get_stdin(self):
-		pkgname=[]
-		for i in ri_data.Group.dict.values():
-			if i.install=='no':
-				continue
-			else:
-				pkgname+=i.mandatory
-				if i.selection=='all':
-					pkgname += [ j[0] for j in i.optional ]
-				else:
-					pkgname += [ j[0] for j in i.optional if j[1] == 'yes' ]
-
+		pkgname = ri_data.Group.get_install_pkgs() + ri_dep.extra_pkgs
 		self.steps += len(pkgname)
 		return '\n'.join(pkgname)
 	
diff --git a/interface/ri_tk_cmd.py b/interface/ri_tk_cmd.py
index 3ae58f6..cfc50fa 100644
--- a/interface/ri_tk_cmd.py
+++ b/interface/ri_tk_cmd.py
@@ -74,11 +74,13 @@ def mp_top_ok():
                 # if format, use the filesystem just set
                 idx2  = int(idxs2[0])
                 fs    = eval(display.var_dict['mp_top_fs'].get())[idx2]
-            else:
+            elif dev in Partition.dict.keys():
                 # else use the filesystem in Partition
-                fs = dev in Partition.dict.keys() and Partition.dict[dev].filesystem 
-                s2 = dev.ljust(10) + dr.ljust(10) + fs.ljust(10) + fm.ljust(4) + sz.ljust(6)
-                l.append(s2)
+                fs = Partition.dict[dev].filesystem
+            else:
+                fs = ' '
+            s2 = dev.ljust(10) + dr.ljust(10) + fs.ljust(10) + fm.ljust(4) + sz.ljust(6) + ri_data.Partition.unit
+            l.append(s2)
             # make change in internal data structure
             ri_data.MountPoint.change(dev, dir, fs, fm)
         else:
@@ -259,7 +261,7 @@ def raid_raw_init():
         dev_in_raid = ri_data.Raid.dev_in_raid()
 
         raw_devs = [ d for d in ri_data.Partition.dict.keys() 
-                     if re.search('raid', ri_data.Partition.dict[d].flags) and d not in dev_in_raid ]
+                     if re.search('raid', ri_data.Partition.dict[d].flags) and d not in dev_in_raid ].sort()
         display.var_dict['raid_raw_devs'].set(value=tuple(raw_devs))
 
 def list_to_list(list_from, var_from, var_to):
@@ -276,7 +278,7 @@ def list_to_list(list_from, var_from, var_to):
             l_to = list(eval(display.var_dict[var_to].get()))
             l_to.append(itm)
         else:
-            l_to = [ itm ]
+            l_to = [ itm ].sort()
         display.var_dict[var_to].set(value=tuple(l_to))
     
 def raid_raw_to_active():
@@ -297,7 +299,7 @@ def raid_spare_to_raw():
 
 def raid_device_init():
     ''' initialize raid device list '''
-    raid_devs = [ r.device for r in ri_data.Raid.list ]
+    raid_devs = [ k for k in ri_data.Raid.keys() ].sort()
     display.var_dict['raid_devs'].set(value=tuple(raid_devs))
 
 def raid_device_add():
@@ -317,6 +319,12 @@ def raid_device_add():
     if not active or not level:
         ri_widget.MessageBox.dict["raid_add_warning"].show()
         return
+    elif int(level) < 2 and len(active) < 2:
+        ri_widget.MessageBox.dict["raid_add_active_numbers"].show()
+        return 
+    elif str(level) == "5" and len(active)<3:
+        ri_widget.MessageBox.dict["raid_add_active_numbers_2"].show()
+        return 
 
     dev = ri_data.Raid.get_next_device()
     ri_data.Raid(dev, "no", level, active, spare)
@@ -376,11 +384,10 @@ def raid_device_list_detail(*args):
         display.var_dict['raid_detail_spare'].set(value='spare: %s' %(str(r.spare_components)))
         display.var_dict['raid_detail_level'].set(value='level: %s' %(str(r.level)))
 
-raid_raw_initialized = False
-
 def install_information_init():
     '''install information initialize'''
     ins_info = ri_data.install_information()
     t= ri_widget.Widget.dict['install_information.list'].tk_widget
     t.insert(1.0,ins_info)
 
+raid_raw_initialized = False