[mbr] finalize protective message MBR

* Note that msg.txt uses codepage 850

res/mbr/msg.S

@@ -1,6 +1,6 @@
-/********************************************************************************/
+/********************************************************************************/
 /* MSG - A protective MBR that displays an ASCII message located in the         */
-/*       following sectors.                                                     */
+/*       subsequent sectors.                                                     */
 /*                                                                              */
 /* Copyright (c) 2019-2020 Pete Batard <pete@akeo.ie>                           */
 /*                                                                              */
@@ -139,20 +139,50 @@ display_msg:			# Display the message
 	mov  ax, es
 	mov  ds, ax
 	call print_msg
-	jmp  halt_system
+	jmp  prompt_user
 
 display_err:			# Read error -> display shorter message from this MBR
 	mov  si, offset err_msg
 	call print_msg
-	
+
-halt_system:			# Halt the system
+prompt_user:
-	hlt
+	xor  ax, ax
-	jmp halt_system		# Just in case...
+	mov  ds, ax
+	mov  si, offset prompt_string
+	call print_msg		# Prompt the user
+	call flush_keyboard
+
+wait_for_keyboard:
+	mov  ah, 0x01
+	int  0x16		# KEYBOARD - CHECK BUFFER, DO NOT CLEAR
+	jnz  reboot		# Z is clear when characters are present in the buffer
+	mov  ah, 0x02
+	int  0x16		# KEYBOARD - GET SHIFT STATUS
+	and  al, 0x04		# AL = shift status bits
+	jz   wait_for_keyboard
+
+reboot:				# Trigger a reboot
+	xor  ax, ax
+	mov  ds, ax
+	mov  ax, 0x1234
+	mov  [0x473], ax
+	jmp  0xffff:0000
 
 /********************************************************************************/
 /* Subroutines                                                                  */
 /********************************************************************************/
 
+flush_keyboard:			# Flush the keyboard buffer
+	mov  ah, 0x01
+	int  0x16		# KEYBOARD - CHECK BUFFER, DO NOT CLEAR
+	jz   0f			# Z is set if no character in buffer
+	mov  ah, 0x00
+	int  0x16		# KEYBOARD - READ CHAR FROM BUFFER
+	loop flush_keyboard
+0:	ret
+
+# ---------------------------------------------------------------------------
+
 print_msg:			# Print NUL terminated string in DS:SI to console
 	lodsb
 	cmp  al, 0x00		# NUL?
@@ -204,7 +234,9 @@ print_msg:			# Print NUL terminated string in DS:SI to console
 /* Data section                                                                 */
 /********************************************************************************/
 err_msg:
-		.string "*** ERROR: THIS MEDIA CANNOT BOOT IN LEGACY MODE ***"
+		.string "\r\n             \\04*** ERROR: THIS MEDIA CANNOT BOOT IN LEGACY MODE ***\\07\r\n"
+prompt_string:
+		.string "\r\n\r\n             \\70Please remove this media and press any key to reboot\\07"
 
 /********************************************************************************/
 /* From offset 0x1b8, the MBR contains the partition table and signature data   */

res/mbr/msg.txt

@@ -1,11 +1,21 @@
-****************************************
+\07
-*** ERROR: LEGACY BOOT OF UEFI MEDIA ***
+             \70 ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ» \07
-****************************************
+             \70 º                                                º \07
+             \70 º   \74ERROR: BIOS/LEGACY BOOT OF UEFI-ONLY MEDIA\70   º \07
+             \70 º                                                º \07
+             \70 ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍͼ \07
 
-This drive can only boot in UEFI mode.
-It can not boot in BIOS/Legacy mode.
 
-If you want to boot this drive in BIOS/Legacy mode, you
+             This drive was created by Rufus [\09https://rufus.ie\07].
-should recreate it in Rufus using the following settings:
+
-* Partition scheme -> MBR
+             It can boot in \04UEFI mode only\07 but you are trying to
-* Target system -> BIOS...
+             boot it in BIOS/Legacy mode. THIS WILL NOT WORK!
+
+             To remove this message you need to do \02ONE\07 of the following:
+             o If this computer supports UEFI, go to the UEFI settings
+               and disable or lower the priority of \09CSM/Legacy mode\07.
+             o \02OR\07 Recreate the drive in Rufus and use:
+               * \09Partition scheme\07 -> \09MBR\07.
+               * \09Target system\07 -> \09BIOS (...)\07
+             o \02OR\07 Erase the whole drive in Rufus by selecting:
+               * \09Boot Type\07 -> \09Non bootable\07

src/rufus.rc

@@ -33,7 +33,7 @@ LANGUAGE LANG_NEUTRAL, SUBLANG_NEUTRAL
 IDD_DIALOG DIALOGEX 12, 12, 232, 326
 STYLE DS_SETFONT | DS_MODALFRAME | DS_CENTER | WS_MINIMIZEBOX | WS_POPUP | WS_CAPTION | WS_SYSMENU
 EXSTYLE WS_EX_ACCEPTFILES
-CAPTION "Rufus 3.9.1618"
+CAPTION "Rufus 3.9.1619"
 FONT 9, "Segoe UI Symbol", 400, 0, 0x0
 BEGIN
     LTEXT           "Drive Properties",IDS_DRIVE_PROPERTIES_TXT,8,6,53,12,NOT WS_GROUP
@@ -394,8 +394,8 @@ END
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 3,9,1618,0
+ FILEVERSION 3,9,1619,0
- PRODUCTVERSION 3,9,1618,0
+ PRODUCTVERSION 3,9,1619,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -413,13 +413,13 @@ BEGIN
             VALUE "Comments", "https://rufus.ie"
             VALUE "CompanyName", "Akeo Consulting"
             VALUE "FileDescription", "Rufus"
-            VALUE "FileVersion", "3.9.1618"
+            VALUE "FileVersion", "3.9.1619"
             VALUE "InternalName", "Rufus"
             VALUE "LegalCopyright", "© 2011-2020 Pete Batard (GPL v3)"
             VALUE "LegalTrademarks", "https://www.gnu.org/licenses/gpl-3.0.html"
             VALUE "OriginalFilename", "rufus-3.9.exe"
             VALUE "ProductName", "Rufus"
-            VALUE "ProductVersion", "3.9.1618"
+            VALUE "ProductVersion", "3.9.1619"
         END
     END
     BLOCK "VarFileInfo"