diff --git a/BOOT/ENVIRON/INC/efidevp.h b/BOOT/ENVIRON/INC/efidevp.h
index ea1ed34..0b76fee 100644
--- a/BOOT/ENVIRON/INC/efidevp.h
+++ b/BOOT/ENVIRON/INC/efidevp.h
@@ -24,8 +24,40 @@ typedef struct _EFI_DEVICE_PATH_PROTOCOL {
 typedef struct _EFI_DEVICE_PATH_PROTOCOL _EFI_DEVICE_PATH;
 typedef EFI_DEVICE_PATH_PROTOCOL EFI_DEVICE_PATH;
 
+#define END_DEVICE_PATH_TYPE 0x7f
+
+#define HARDWARE_DEVICE_PATH 0x01
+
+#define HW_MEMMAP_DP 0x03
+
+typedef struct {
+    EFI_DEVICE_PATH Header;
+    UINT32 MemoryType;
+    EFI_PHYSICAL_ADDRESS StartingAddress;
+    EFI_PHYSICAL_ADDRESS EndingAddress;
+} MEMMAP_DEVICE_PATH;
+
 #define MEDIA_DEVICE_PATH 0x04
 
+#define MEDIA_HARDDRIVE_DP 0x01
+
+typedef struct {
+    EFI_DEVICE_PATH Header;
+    UINT32 PartitionNumber;
+    UINT64 PartitionStart;
+    UINT64 PartitionSize;
+    UINT8 Signature[16];
+    UINT8 MBRType;
+    UINT8 SignatureType;
+} HARDDRIVE_DEVICE_PATH;
+
+#define MBR_TYPE_PCAT                       0x01
+#define MBR_TYPE_EFI_PARTITION_TABLE_HEADER 0x02
+
+#define NO_DISK_SIGNATURE   0x00
+#define SIGNATURE_TYPE_MBR  0x01
+#define SIGNATURE_TYPE_GUID 0x02
+
 #define MEDIA_CDROM_DP 0x02
 
 typedef struct {
@@ -35,6 +67,13 @@ typedef struct {
     UINT64 PartitionSize;
 } CDROM_DEVICE_PATH;
 
+#define MEDIA_FILEPATH_DP 0x04
+
+typedef struct {
+    EFI_DEVICE_PATH Header;
+    CHAR16 PathName[1];
+} FILEPATH_DEVICE_PATH;
+
 FORCEINLINE
 UINT8
 DevicePathType (