modify code for bug1241, note user to partition before install the system, adjust /etc/fstab

modified:   dialog/di_dialog.py
	modified:   interface/ri_data.py
	modified:   interface/ri_tk_cmd.py
	modified:   operation/configure_fstab.sh

interface/ri_tk_cmd.py

@@ -1,11 +1,14 @@
 #!/usr/bin/python
+# -*- coding: utf-8 -*-
 ''' handle gui commands '''
 import ri_tk as display
+import tkMessageBox
 import ri_widget
 import ri_data
 import ri_dep
 import ri_func_dep
 import ri_oper
+from ri_oper import language
 import re
 import copy
 import sys
@@ -30,6 +33,13 @@ def mount_list_init():
         s = m.device.ljust(10) + m.directory.ljust(10) + m.filesystem.ljust(10) + m.format.ljust(4) + sz.ljust(6) + ri_data.Partition.unit
         l.append(s)
     display.var_dict['mount.list'].set(value=tuple([str(i) for i in l]))
+    ''' if disk has no partition, do this '''
+    ret = ri_data.Partition.check_partitions()
+    if ret != 0:
+        tkMessageBox.showerror(title='Linx', message="%s"%( language == 'chinese' and u"对不起，\
+                您的硬盘还没有分区，请先对硬盘分区后再进行安装操作！" or \
+                "Sorry, You have not patition your hard disk, please partition at first!"))
+        sys.exit(1)
 
 def mount_quit():
     if ri_oper.Operation.getarch() == "ia64":