diff --git a/pym/cl_fill_install.py b/pym/cl_fill_install.py
index 6a2031a..5de4c64 100644
--- a/pym/cl_fill_install.py
+++ b/pym/cl_fill_install.py
@@ -116,7 +116,7 @@ class fillVars(object, glob_attr):
         devices = filter( lambda x: not reWrongDevice.search(x),
                         listdir('/sys/block'))
         device_hash = {}
-        for mapnum,device in enumerate(sorted(devices)):
+        for mapnum,device in enumerate(sorted(devices,key=self.separateDevice)):
             device_hash[device] = {}
             device_hash[device]['map'] = mapnum
             if device in usbdevices:
@@ -253,14 +253,20 @@ class fillVars(object, glob_attr):
                 disk_hash[dev]['format'] = dictFormatList[dev]
         return disk_hash
 
+    def separateDevice(self,device):
+        return map(lambda x: int(x) if x.isdigit() else x,
+                   re.findall('\d+|\D+',device))
+
     def get_os_disk_dev(self):
         """List of available partition devices"""
-        return sorted(self.Get('os_disk_hash').keys())
+        return sorted(self.Get('os_disk_hash').keys(),
+                      key=self.separateDevice)
 
     def getAttributeFromHash(self,var,attr):
         hash = self.Get(var)
         return map(lambda x: hash[x][attr] if attr in hash[x] else "",
-                sorted(hash.keys()))
+                sorted(hash.keys(),
+                       key=self.separateDevice))
 
     def get_os_install_disk_id(self):
         """List id for partition after installation"""
@@ -315,13 +321,15 @@ class fillVars(object, glob_attr):
                 else:
                     return mount_point
         return map(lambda x: getMountPoint(x),
-                    sorted(self.Get('os_disk_hash').keys()))
+                    sorted(self.Get('os_disk_hash').keys(),
+                           key=self.separateDevice))
 
     def get_os_disk_mount(self):
         """List mounted points for current operation system"""
         disk_hash = self.Get('os_disk_hash')
         return map(lambda x: isFstabMount(x) or "",
-                    sorted(self.Get('os_disk_hash').keys()))
+                    sorted(self.Get('os_disk_hash').keys(),
+                           key=self.separateDevice))
 
     def get_os_disk_format(self):
         """List filesystem for partition devices"""
@@ -353,7 +361,8 @@ class fillVars(object, glob_attr):
 
     def get_os_device_dev(self):
         """Devices"""
-        return sorted(self.Get('os_device_hash').keys())
+        return sorted(self.Get('os_device_hash').keys(),
+                      key=self.separateDevice)
 
     def get_os_device_type(self):
         """Device type (hdd,cdrom,usb-flash)"""
@@ -378,7 +387,8 @@ class fillVars(object, glob_attr):
                                         self.Get('os_install_disk_mount'),
                                         self.Get('os_install_disk_format'),
                                         self.Get('os_install_disk_options'))),
-                                 lambda x,y: cmp(x[1],y[1]))
+                                 lambda x,y: cmp(self.separateDevice(x[1]),
+                                                 self.separateDevice(y[1])))
         if self.Get('os_install_scratch') == "on":
             devicesForFstab = filter(lambda x:x[1] != "/", devicesForFstab)
 
diff --git a/pym/cl_install.py b/pym/cl_install.py
index b913c67..d395802 100644
--- a/pym/cl_install.py
+++ b/pym/cl_install.py
@@ -1171,6 +1171,9 @@ class cl_install(color_print, SignalInterrupt):
             substitution = lambda data,mp: data
         else:
             substitution = lambda data,mp: data if mp == '/' else ""
+        separateDevice = lambda device: map(
+                    lambda x: int(x) if x.isdigit() else x,
+                   re.findall('\d+|\D+',device))
         # update variables by new hash
         new_mount, new_format, new_isformat, new_options= \
                 reduce(lambda x,y:[x[0]+[substitution(devMount[y]['mountPoint'],
@@ -1181,7 +1184,7 @@ class cl_install(color_print, SignalInterrupt):
                                            devMount[y]['mountPoint'])],
                                    x[3]+[substitution(devMount[y]['options'],
                                            devMount[y]['mountPoint'])]],
-                       sorted(devMount.keys()),[[]]*4)
+                       sorted(devMount.keys(),key=separateDevice),[[]]*4)
 
         map(lambda x:self.clVars.Set(x[0],x[1],True),
             (('os_install_disk_mount',new_mount),