Index: uspace/srv/part/mbr_part/mbr_part.c
===================================================================
--- uspace/srv/part/mbr_part/mbr_part.c	(revision e27b89ad7a36cbdf96bb40b3057e485266d12200)
+++ uspace/srv/part/mbr_part/mbr_part.c	(revision 9aa54d4afe96e1d426c161bfaef512703b0eb575)
@@ -39,7 +39,17 @@
  *
  * Limitations:
- *
+ * 
  * Only works with boot records using LBA. CHS-only records are not
- * supported. Maximum number of partitions is fixed.
+ * supported.
+ *
+ * Referemces:
+ *	
+ * The source of MBR structures for this driver have been the following
+ * Wikipedia articles:
+ *	- http://en.wikipedia.org/wiki/Master_Boot_Record
+ *	- http://en.wikipedia.org/wiki/Extended_boot_record
+ *
+ * The fact that the extended partition has type 0x05 is pure observation.
+ * (TODO: can it have any other type number?)
  */
 
@@ -70,5 +80,5 @@
 
 	/** Boot record signature */
-	BR_SIGNATURE	= 0xAA55,
+	BR_SIGNATURE	= 0xAA55
 };
 
@@ -366,4 +376,5 @@
 
 	part->present = (sa != 0 || len != 0) ? true : false;
+
 	part->dev = 0;
 	part->next = NULL;