--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cos/utils/makeinitrd.py	Fri Feb 03 17:56:41 2012 +0100
@@ -0,0 +1,34 @@
+#!/usr/bin/python
+
+# Script for generation of an initial ramdisk that contains 
+# the first programs to run.
+
+import struct
+import sys
+
+if len(sys.argv) < 3:
+   print('Usage: {0} output file1 [file2] ...'.format(sys.argv[0]))
+   sys.exit(1)
+
+outputfilename = sys.argv[1]
+inputFileNames = sys.argv[2:]
+
+with open(outputfilename, 'wb') as outputFile:
+   # Amount of files:
+   outputFile.write(struct.pack('<I', 0x1337babe))
+   outputFile.write(struct.pack('<I', len(inputFileNames)))
+   for inputFileName in inputFileNames:
+      # Magic:
+      outputFile.write(struct.pack('<I', 0xcafebabe))
+
+      # Filename:
+      fn = inputFileName.encode('ascii')
+      outputFile.write(struct.pack('<I', len(fn)))
+      outputFile.write(fn)
+
+      # Data:
+      with open(inputFileName, 'rb') as inputFile:
+         data = inputFile.read()
+      outputFile.write(struct.pack('<I', len(data)))
+      outputFile.write(data)
+