Added install Syslinux section

.bin/Scripts/build-ufd

@@ -86,6 +86,12 @@ if __name__ == '__main__':
       )
 
     # Install syslinux
+    try_and_print(
+      message='Installing Syslinux...',
+      function=install_syslinux,
+      ufd_dev=ufd_dev,
+      use_mbr=args['--use-mbr'],
+      )
 
     # Hide items
 

.bin/Scripts/functions/ufd.py

@@ -159,6 +159,20 @@ def get_user_name():
   return user
 
 
+def install_syslinux(ufd_dev, use_mbr):
+  """Install Syslinux to UFD."""
+  cmd = [
+    'dd',
+    'bs=440',
+    'count=1',
+    'if=/usr/lib/syslinux/bios/{}.bin'.format(
+      'mbr' if use_mbr else 'gptmbr',
+      ),
+    'of={}'.format(ufd_dev),
+    ]
+  run_program(cmd)
+
+
 def is_valid_path(path_obj, path_type):
   """Verify path_obj is valid by type, returns bool."""
   valid_path = False