From c3922613ea20450b3cca6c21f3b22e76aa618165 Mon Sep 17 00:00:00 2001
From: 4am <a2_4am@sent.com>
Date: Fri, 20 Sep 2019 20:56:24 -0400
Subject: [PATCH] refactor changebootloader

---
 Makefile                |  2 +-
 bin/changebootloader.py | 15 ---------------
 bin/changebootloader.sh |  3 +++
 3 files changed, 4 insertions(+), 16 deletions(-)
 delete mode 100755 bin/changebootloader.py
 create mode 100755 bin/changebootloader.sh

diff --git a/Makefile b/Makefile
index e1162c58b..53bf87350 100644
--- a/Makefile
+++ b/Makefile
@@ -87,7 +87,7 @@ dsk: md asm
 	$(CADIUS) ADDFOLDER build/"$(DISK)" "/$(VOLUME)/X" "build/X" >>build/log
 	bin/buildfileinfo.sh build/PRELAUNCH "06" "0106" >>build/log
 	$(CADIUS) ADDFOLDER build/"$(DISK)" "/$(VOLUME)/PRELAUNCH" "build/PRELAUNCH" >>build/log
-	bin/changebootloader.py build/"$(DISK)" res/proboothd
+	bin/changebootloader.sh build/"$(DISK)" res/proboothd
 
 asm: md asmlauncher asmfx asmprelaunch
 
diff --git a/bin/changebootloader.py b/bin/changebootloader.py
deleted file mode 100755
index 87e59d366..000000000
--- a/bin/changebootloader.py
+++ /dev/null
@@ -1,15 +0,0 @@
-#!/usr/bin/env python3
-
-import sys
-import os.path
-
-target_2mg_file, bootloader = sys.argv[1:]
-assert(os.path.splitext(target_2mg_file)[-1].lower() == ".2mg")
-with open(bootloader, 'rb') as f:
-    boot = f.read()
-assert(len(boot) == 512)
-with open(target_2mg_file, 'rb') as f:
-    data = bytearray(f.read())
-data[64:64+len(boot)] = boot
-with open(target_2mg_file, 'wb') as f:
-    f.write(data)
diff --git a/bin/changebootloader.sh b/bin/changebootloader.sh
new file mode 100755
index 000000000..9f4b8c6d4
--- /dev/null
+++ b/bin/changebootloader.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+dd of="$1" bs=1 seek=64 count=512 conv=notrunc < "$2"