Sharp SL-5500 File Manager Guide Bedienungsanleitung PDF herunterladen (Seite 16)

CHAPTER 4. LIVERAM DISKS 4.4. HARD VERSIONS

4.4.2 In Practice

Practically, you may wonder how all these ﬁles can be found, as, even with some searches on the

Internet, you may still be wondering where they are.

4.4.2.1 The Python Script

You can use the following Python script (thanks to Lex Landa for this):

#!/usr/bin/env python

import sys

import os

import stat

import struct

import getopt

import re

optlist, args = getopt.gnu_getopt(sys.argv[1:], "o:vh?")

opts = {}

opts.update(optlist)

if len(args) != 4:

print "make-bootbundle - Make a standalone HaRET boot bundle with kernel and initrd"

print "Usage: make-bootbundle.py -o <outfile> <path to haret.exe> <zImage> <initrd> <script>"

sys.exit(0)

outfile = opts["-o"]

os.system("cat %s %s %s %s> %s" % (args[0], args[1], args[2], args[3], outfile))

exe = open(outfile, "r+b")

kernelSt = os.stat(args[1])

initrdSt = os.stat(args[2])

scriptSt = os.stat(args[3])

exe.seek(0, 2)

exe.write("HARET1\0\0")

exe.write(struct.pack("i", kernelSt[stat.ST_SIZE]))

exe.write(struct.pack("i", initrdSt[stat.ST_SIZE]))

exe.write(struct.pack("i", scriptSt[stat.ST_SIZE]))

exe.write(struct.pack("i", 0))

exe.close()

if opts.has_key("-v"):

haretSt = os.stat(args[0])

print "HaRET:\t", haretSt[stat.ST_SIZE]

print "Kernel:\t", kernelSt[stat.ST_SIZE]

print "Initrd:\t", initrdSt[stat.ST_SIZE]

print "Script:\t", scriptSt[stat.ST_SIZE]

print "Header:\t", 8 + 4*6

print "-------------"

print "Total:\t", \

haretSt[stat.ST_SIZE] + kernelSt[stat.ST_SIZE] + \

initrdSt[stat.ST_SIZE] + scriptSt[stat.ST_SIZE] + 8 + 4*6

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