Index: base/setup/usetup/interface/usetup.c
===================================================================
--- base/setup/usetup/interface/usetup.c	(revision 74511)
+++ base/setup/usetup/interface/usetup.c	(working copy)
@@ -1755,7 +1755,7 @@
 }
 
 
-#define PARTITION_SIZE_INPUT_FIELD_LENGTH 6
+#define PARTITION_SIZE_INPUT_FIELD_LENGTH 9
 /* Restriction for MaxSize: pow(10, PARTITION_SIZE_INPUT_FIELD_LENGTH)-1 */
 #define PARTITION_MAXSIZE 999999
 
@@ -1853,7 +1853,7 @@
                                    PartitionSizeBuffer);
         }
         else if ((Ir.Event.KeyEvent.uChar.AsciiChar != 0x00) &&
-                 (Index < PARTITION_SIZE_INPUT_FIELD_LENGTH))
+                 (Index < PARTITION_SIZE_INPUT_FIELD_LENGTH - 1))
         {
             ch = (WCHAR)Ir.Event.KeyEvent.uChar.AsciiChar;