diff --git a/python/ri_data.py b/python/ri_data.py
index 0a6ce9f..a200710 100644
--- a/python/ri_data.py
+++ b/python/ri_data.py
@@ -41,12 +41,13 @@ class Partition:
     ''' disk partition '''
     unit=''
     list=[]
-    def __init__(self, dev, st, sz, id):
+    def __init__(self, dev, st, sz, id, fr):
         ''' Partition init function '''
         self.device = dev
         self.start  = st
         self.size   = sz
         self.id     = id
+        self.from_os = fr
         Partition.list.append(self)
 
     @staticmethod
@@ -72,7 +73,7 @@ class Partition:
             res = p.search(s)
             if res:
                 dev, start, size, id = res.groups()
-                Partition(dev.split('/')[-1], start, size, id)
+                Partition(dev.split('/')[-1], start, size, id, True)
 
     @staticmethod
     def init_from_xml(node):
@@ -83,7 +84,8 @@ class Partition:
                 Partition(p.attributes['device'].value.encode('ascii'),\
                               p.attributes['start'].value.encode('ascii'), \
                               p.attributes['size'].value.encode('ascii'), \
-                              p.attributes['id'].value.encode('ascii'))
+                              p.attributes['id'].value.encode('ascii'), \
+                              p.attributes['from_os'].value.encode('ascii'))
 
     @staticmethod
     def to_xml(doc, p_node):
@@ -100,14 +102,17 @@ p_node - xml node (parent node)'''
             start_attr = doc.createAttribute('start')
             size_attr  = doc.createAttribute('size')
             id_attr    = doc.createAttribute('id')
+            from_attr    = doc.createAttribute('from_os')
             dev_attr.value   = p.device
             start_attr.value = p.start
             size_attr.value  = p.size
             id_attr.value    = p.id
+            from_attr.value    = p.from_os
             pt.setAttributeNode(dev_attr)
             pt.setAttributeNode(start_attr)
             pt.setAttributeNode(size_attr)
             pt.setAttributeNode(id_attr)
+            pt.setAttributeNode(from_attr)
             pts.appendChild(pt)
         p_node.appendChild(pts)
 
@@ -120,9 +125,10 @@ p_node - xml node (parent node)'''
 class Raid:
     ''' raid information '''
     list = []
-    def __init__(self, dev, level, sz, a_devs, s_devs=[]):
+    def __init__(self, dev, from_os, level, sz, a_devs, s_devs=[]):
         ''' Raid init function '''
         self.device  = dev
+        self.from_os = from_os
         self.level   = level
         self.size    = sz
         self.active_components = a_devs
@@ -142,6 +148,11 @@ class Raid:
 (\w+)\s*       # raid type
 ''', re.VERBOSE)
 
+        size_p = re.compile(r'''
+^\s*(\d+)   # block number
+\s*blocks''', re.VERBOSE)
+
+
         for s in o.splitlines():
             dev_res = dev_p.split(s)
             if len(dev_res)>1: # matched
@@ -149,9 +160,22 @@ class Raid:
                 raid_dev = dev_res[1]
                 raid_level = dev_res[2]
                 act_cmpts =[]
+                spr_cmpts =[]
                 for ss in dev_res[3].split():
-                    act_cmpts.append(ss[:ss.index('[')])
-                Raid(raid_dev, raid_level, '-1', act_cmpts)
+                    if re.search(r'\(S\)', ss):
+                        spr_cmpts.append(ss[:ss.index('[')])
+                    else:
+                        act_cmpts.append(ss[:ss.index('[')])
+                continue
+
+            if size_p.match(s).groups(): 
+                raid_size = size_p.match(s).groups()[0]
+                # if already detect a raid dev
+                if raid_dev:
+                    Raid(raid_dev, True, raid_level, raid_size, act_cmpts, spr_cmpts)
+                    # clear raid dev
+                    raid_dev=''
+
 
     @staticmethod
     def add_component(node, l):
@@ -169,6 +193,7 @@ l    - list
         for e in node.childNodes:
             if e.nodeType == e.ELEMENT_NODE and e.nodeName == 'raid':
                 raid_dev = e.attributes['device'].value
+                raid_from = e.attributes['from_os'].value
                 raid_level = e.attributes['level'].value
                 raid_size = e.attributes['size'].value
                 act_cmpts = []
@@ -180,7 +205,7 @@ l    - list
                         elif sub_e.nodeName == 'spare':
                             Raid.add_component(sub_e, spr_cmpts)
 
-                Raid(raid_dev, raid_level, raid_size, act_cmpts, spr_cmpts)
+                Raid(raid_dev, raid_from, raid_level, raid_size, act_cmpts, spr_cmpts)
 
     @staticmethod
     def to_xml(doc, p_node):
@@ -195,6 +220,10 @@ p_node - xml node (parent node) '''
             rd_dev_attr.value = r.device
             rd.setAttributeNode(rd_dev_attr)
 
+            rd_from_attr = doc.createAttribute('from_os')
+            rd_from_attr.value = r.from_os
+            rd.setAttributeNode(rd_from_attr)
+
             rd_level_attr = doc.createAttribute('level')
             rd_level_attr.value = r.level
             rd.setAttributeNode(rd_level_attr)
@@ -215,7 +244,7 @@ p_node - xml node (parent node) '''
             for spr_c in r.spare_components:
                 spr_c_e = doc.createElement('component')
                 spr_c_tn = doc.createTextNode(spr_c)
-                spr_c_e.appendChild(act_c_tn)
+                spr_c_e.appendChild(spr_c_tn)
                 rd_spr_elem.appendChild(spr_c_e)
             rd.appendChild(rd_spr_elem)
 
@@ -232,12 +261,12 @@ p_node - xml node (parent node) '''
 class MountPoint:
     ''' mount-points '''
     list=[]
-    def __init__(self, dev, dir='', fs='', fm='no'):
+    def __init__(self, dev, dir='', fs='', fm='no', sz='0'):
         self.device     = dev
         self.directory  = dir
         self.filesystem = fs
         self.format     = fm
-        self.size       = Partition.get_size(dev)
+        self.size       = sz
         MountPoint.list.append(self)
 
     @staticmethod
@@ -251,16 +280,12 @@ class MountPoint:
     @staticmethod
     def init_from_internal():
         ''' init MountPoint from internal class Partition and class Raid '''
-        devs = [ p.device for p in Partition.list ]
-        for r in Raid.list:
-            for raw_d in r.raw_devices:
-                if raw_d in devs:
-                    devs.remove(raw_d)
-            if not r.raid_device in devs:
-                devs.append(r.raid_device)
+        for p in Partition.list:
+            if p.id != 'fd':
+                MountPoint(p.device, sz=p.size)
 
-        for dev in devs:
-            MountPoint(dev)
+        for r in Raid.list:
+            MountPoint(r,device, sz=r.size)
 
     @staticmethod
     def init_from_xml(node):
diff --git a/python/ri_tk_cmd.py b/python/ri_tk_cmd.py
index 95f47cb..db7ffa4 100644
--- a/python/ri_tk_cmd.py
+++ b/python/ri_tk_cmd.py
@@ -226,3 +226,28 @@ def service_quit():
         if i.start != 'disable':
             vn = "service_%s" %(i.name)
             i.start = display.var_dict[vn].get()
+
+def raid_raw_init():
+    ''' initialize raid raw devices (parttion with id 'fd' '''
+    raw_devs = [ p.device for p in ri_data.Partition.list if p.id == 'fd' ]
+    display.var_dict['raid_raw_devs'].set(value=tuple(raw_devs))
+
+def raid_raw_to_active():
+    ''' move device from raw to active '''
+    raw_win = ri_widget.Widget.dict['raid_raw.list'].tk_widget
+    idxs = raw_win.curselection()
+    if len(idxs) == 1:
+        idx = int(idxs[0])
+        raw_list = list(eval(display.var_dict['raid_raw_devs'].get()))
+        raw_item = raw_list[idx]
+        del raw_list[idx]
+        print raw_list
+        display.var_dict['raid_raw_devs'].set(value=tuple(raw_list))
+        active_list = list(eval(display.var_dict['raid_active_devs'].get()))
+        active_list.append(raw_item)
+        display.var_dict['raid_active_devs'].set(value=tuple(active_list))
+
+def raid_device_init():
+    ''' initialize raid device list '''
+    raid_devs = [ r.device for r in ri_data.Raid.list if r.from_os == 'no' ]
+    display.var_dict['raid_dev.list'].set(value=tuple(raid_devs))
diff --git a/xml/install.xml b/xml/install.xml
index 19b9f75..37696e4 100644
--- a/xml/install.xml
+++ b/xml/install.xml
@@ -2,20 +2,19 @@
 <install>
   <serial-number>123456789</serial-number>
   <partitions unit='sectors'>
-    <partition device='sda1' start='63' id='83' size='195318207'/>
-    <partition device='sda2' start='195318270' id='82' size='3903795'/>
-    <partition device='sda3' start='199222065' id='83' size='195318270'/>
-    <partition device='sda4' start='394540335' id='83' size='582227730'/>
-    <partition device='sdb1' start='63' id='83' size='125837082'/>
-    <partition device='sdb2' start='125837145' id='82' size='8401995'/>
-    <partition device='sdb3' start='134240256' id='83' size='354154799'/>
-    <partition device='sdb4' start='0' id='0' size='0'/>
+    <partition device='sda1' start='63' from_os='yes' id='83' size='195318207'/>
+    <partition device='sda2' start='195318270' from_os='yes' id='fd' size='3903795'/>
+    <partition device='sda3' start='199222065' from_os='yes' id='fd' size='195318270'/>
+    <partition device='sda4' start='394540335' from_os='yes' id='fd' size='582227730'/>
+    <partition device='sdb1' start='63' from_os='yes' id='83' size='125837082'/>
+    <partition device='sdb2' start='125837145' from_os='yes' id='82' size='8401995'/>
+    <partition device='sdb3' start='134240256' from_os='yes' id='83' size='354154799'/>
+    <partition device='sdb4' start='0' from_os='yes' id='0' size='0'/>
   </partitions>
   <raids>
-    <raid device='md0' size='-1' level='1'>
+    <raid device='md0' from_os='no' size='-1' level='1'>
       <active>
         <component>sda1</component>
-        <component/>
       </active>
       <spare>
         <component>sdb1</component>
diff --git a/xml/install_ng.xml b/xml/install_ng.xml
index acc5dcf..8b6a5fd 100644
--- a/xml/install_ng.xml
+++ b/xml/install_ng.xml
@@ -32,6 +32,9 @@
 	  <attribute name='start'/>
 	  <attribute name='size'/>
 	  <attribute name='id'/>
+	  <attribute name='from_os'>
+	    <ref name='mybool'/>
+	  </attribute>
 	</element>
       </oneOrMore>
     </element>
@@ -50,6 +53,9 @@
 	    </choice>
 	  </attribute>
 	  <attribute name="size"/>
+	  <attribute name="from_os">
+	    <ref name='mybool'/>
+	  </attribute>
 	  <element name='active'>
 	    <ref name='raid_components'/>
 	  </element>
diff --git a/xml/interface.xml b/xml/interface.xml
index 7b618d7..da9c88c 100644
--- a/xml/interface.xml
+++ b/xml/interface.xml
@@ -634,6 +634,7 @@ row 4 |                                                            |
 	<widget_attribute listvariable='raid_raw_devs'/>
 	<grid_location row='1' column='0' sticky='NWES'/>
 	<variable name='raid_raw_devs' type='StringVar'/>
+	<action init='raid_raw_init'/>
       </widget>
 
       <widget type='Scrollbar' name='raid_raw.scroll'>
@@ -656,7 +657,7 @@ row 4 |                                                            |
 	<grid_location row='0' column='1' sticky='W'/>
       </widget>
       <widget type='Button'>
-	<widget_attribute text='-&gt;'/>
+	<widget_attribute text='-&gt;' command='raid_raw_to_active'/>
 	<grid_location row='1' column='0' sticky='S'/>
       </widget>
       <widget type='Button'>
@@ -746,6 +747,7 @@ row 4 |                                                            |
 	<widget_attribute listvariable='raid_dev.list'/>
 	<grid_location row='1' column='1' rowspan='2'/>
 	<variable name='raid_dev.list' type='StringVar'/>
+	<action init='raid_device_init'/>
       </widget>
     </widget>
   </widget>