Index: branches/ErmaC/Enoch/i386/boot2/boot.h
===================================================================
--- branches/ErmaC/Enoch/i386/boot2/boot.h	(revision 2830)
+++ branches/ErmaC/Enoch/i386/boot2/boot.h	(revision 2831)
@@ -30,6 +30,7 @@
 #include "libsaio.h"
 
 // OS X Versions
+#define SIERRA          checkOSVersion("10.12") // Sierra
 #define ELCAPITAN       checkOSVersion("10.11") // El Capitan
 #define YOSEMITE        checkOSVersion("10.10") // Yosemite
 #define MAVERICKS       checkOSVersion("10.9")  // Mavericks
Index: branches/ErmaC/Enoch/i386/boot2/gui.c
===================================================================
--- branches/ErmaC/Enoch/i386/boot2/gui.c	(revision 2830)
+++ branches/ErmaC/Enoch/i386/boot2/gui.c	(revision 2831)
@@ -54,7 +54,8 @@
 	iDeviceGeneric_o,
 	iDeviceHFS,
 	iDeviceHFS_o,
-
+	iDeviceHFS_sie,
+	iDeviceHFS_sie_o,
 	iDeviceHFS_cap,
 	iDeviceHFS_cap_o,
 	iDeviceHFS_yos,
@@ -74,6 +75,8 @@
 
 	iDeviceHFSRAID,
 	iDeviceHFSRAID_o,
+	iDeviceHFSRAID_sie,
+	iDeviceHFSRAID_sie_o,
 	iDeviceHFSRAID_cap,
 	iDeviceHFSRAID_cap_o,
 	iDeviceHFSRAID_yos,
@@ -96,6 +99,8 @@
 
 	iDeviceHFSFUSION,
 	iDeviceHFSFUSION_o,
+	iDeviceHFSFUSION_sie,
+	iDeviceHFSFUSION_sie_o,
 	iDeviceHFSFUSION_cap,
 	iDeviceHFSFUSION_cap_o,
 	iDeviceHFSFUSION_yos,
@@ -160,7 +165,8 @@
 	{.name = "device_generic_o",            .image = NULL},
 	{.name = "device_hfsplus",              .image = NULL},
 	{.name = "device_hfsplus_o",            .image = NULL},
-
+	{.name = "device_hfsplus_sie",          .image = NULL},
+	{.name = "device_hfsplus_sie_o",        .image = NULL},
 	{.name = "device_hfsplus_cap",          .image = NULL},
 	{.name = "device_hfsplus_cap_o",        .image = NULL},
 	{.name = "device_hfsplus_yos",          .image = NULL},
@@ -180,6 +186,8 @@
 
 	{.name = "device_hfsraid",              .image = NULL},
 	{.name = "device_hfsraid_o",            .image = NULL},
+	{.name = "device_hfsraid_sie",          .image = NULL},
+	{.name = "device_hfsraid_sie_o",        .image = NULL},
 	{.name = "device_hfsraid_cap",          .image = NULL},
 	{.name = "device_hfsraid_cap_o",        .image = NULL},
 	{.name = "device_hfsraid_yos",          .image = NULL},
@@ -202,6 +210,8 @@
 
 	{.name = "device_hfsfusion",            .image = NULL},
 	{.name = "device_hfsfusion_o",          .image = NULL},
+	{.name = "device_hfsfusion_sie",        .image = NULL},
+	{.name = "device_hfsfusion_sie_o",      .image = NULL},
 	{.name = "device_hfsfusion_cap",        .image = NULL},
 	{.name = "device_hfsfusion_cap_o",      .image = NULL},
 	{.name = "device_hfsfusion_yos",        .image = NULL},
@@ -419,6 +429,8 @@
 	LOADPNG(device_hfsplus,                 iDeviceGeneric);
 	LOADPNG(device_hfsplus_o,               iDeviceHFS);
 
+	LOADPNG(device_hfsplus_sie,             iDeviceHFS);
+	LOADPNG(device_hfsplus_sie_o,           iDeviceHFS_sie);
 	LOADPNG(device_hfsplus_cap,             iDeviceHFS);
 	LOADPNG(device_hfsplus_cap_o,           iDeviceHFS_cap);
 	LOADPNG(device_hfsplus_yos,             iDeviceHFS);
@@ -438,6 +450,8 @@
 
 	LOADPNG(device_hfsraid,                 iDeviceHFS);
 	LOADPNG(device_hfsraid_o,               iDeviceHFSRAID);
+	LOADPNG(device_hfsraid_sie,             iDeviceHFSRAID);
+	LOADPNG(device_hfsraid_sie_o,           iDeviceHFSRAID_sie);
 	LOADPNG(device_hfsraid_cap,             iDeviceHFSRAID);
 	LOADPNG(device_hfsraid_cap_o,           iDeviceHFSRAID_cap);
 	LOADPNG(device_hfsraid_yos,             iDeviceHFSRAID);
@@ -460,6 +474,8 @@
 
 	LOADPNG(device_hfsfusion,               iDeviceHFS);
 	LOADPNG(device_hfsfusion_o,             iDeviceHFSFUSION);
+	LOADPNG(device_hfsfusion_sie,           iDeviceHFSFUSION);
+	LOADPNG(device_hfsfusion_sie_o,         iDeviceHFSFUSION_sie);
 	LOADPNG(device_hfsfusion_cap,           iDeviceHFSFUSION);
 	LOADPNG(device_hfsfusion_cap_o,         iDeviceHFSFUSION_cap);
 	LOADPNG(device_hfsfusion_yos,           iDeviceHFSFUSION);
@@ -1121,6 +1137,10 @@
 								devicetype = (device->flags & kBVFlagBooter ? iDeviceHFSRAID_cap : iDeviceHFS_cap); // El Capitan
 								break;
 							}
+							if (device->OSVersion[4] == '2') { // 10.12
+								devicetype = (device->flags & kBVFlagBooter ? iDeviceHFSRAID_sie : iDeviceHFS_sie); // Sierra
+								break;
+							}
 						default:
 							devicetype = (device->flags & kBVFlagBooter ? iDeviceHFSRAID : iDeviceHFS);
 							break;