boot.img解包和打包

来源：互联网发布：网络爱情歌曲大全编辑：程序博客网时间：2024/05/22 12:49

转载自 http://blog.csdn.net/tody_guo/article/details/7515151

其实解压、打包boot.img没什么难度一看就会咯！！

1.先下附件：工具。点击打开链接 6.0 KB, 下载次数: 60) 解压到bin文件夹里，方便以后使用。
2.解压boot.img文件
去到boot.img所在的文件夹，输入下面的命令：

split.pl boot.img

   Page size: 2048 (0x00000800)
      Kernel size: 2240184 (0x00222eb8)
      Ramdisk size: 221504 (0x00036140)
      Second size: 0 (0x00000000)
      Board name:
      Command line:androidboot.hardware=blade console=null g_android.product_id=0x1354 g_android.serial_number=Blade-CM7
      Writing boot.img-kernel ... complete.
      Writing boot.img-ramdisk.gz ... complete.
      完了之后，你就会发现多了boot.img-kernel 和 boot.img-ramdisk.gz文件，这就是解压出来的boot.img，其中boot.img-kernel 就是内核，boot.img-ramdisk.gz就是ramdisk。

   3.打包boot.img文件

         在替换和内核后，就要对boot.img打包了！！下是代码:

mkbootimg --cmdline 'androidboot.hardware=blade console=null g_android.product_id=0x1354 g_android.serial_number=Blade-CM7' --kernel boot.img-kernel --ramdisk boot.img-ramdisk.gz -o new.img

命令中-cmdline‘xxx’，xxx就是解压boot.img是Command line：xxx

new.img文件就是你修改后的boot.img文件了。改个名字替换到ROM里面就可以了。！！

# ./split_bootimg.pl boot.img
Page size: 2048 (0x00000800)
Kernel size: 1388548 (0x00153004)
Ramdisk size: 141518 (0x000228ce)
Second size: 0 (0x00000000)
Board name:
Command line: no_console_suspend=1
Writing boot.img-kernel ... complete.
Writing boot.img-ramdisk.gz ... complete.

Extract the ramdisk.

# mkdir ramdisk
# cd ramdisk
# gzip -dc ../*-ramdisk.gz | cpio -i
# cd ..

Make any changes necessary (e.g., set ro.secure=0 in default.prop).

Recreate the cpio archive using the mkbootfs binary produced from building the Android source code (The cpio utility in OS X does not recognize the newc format, therefore mkbootfs is the best option for OS X users).

# mkbootfs ./ramdisk | gzip > ramdisk-new.gz

Recreate the image file using the mkbootimg binary produced from building the Android source code.

# mkbootimg --cmdline 'no_console_suspend=1 console=null' --kernel boot.img-kernel --ramdisk ramdisk-new.gz -o boot-new.img --base 0x20000000

=======================================================================

Make any changes necessary (e.g., set ro.secure=0 in default.prop).

Recreate the cpio archive using the mkbootfs binary produced from building the Android source code (The cpio utility in OS X does not recognize the newc format, therefore mkbootfs is the best option for OS X users).

# mkbootfs ./ramdisk | gzip > ramdisk-new.gz

Recreate the image file using the mkbootimg binary produced from building the Android source code.

# mkbootimg --cmdline 'no_console_suspend=1 console=null' --kernel boot.img-kernel --ramdisk ramdisk-new.gz -o boot-new.img --base 0x20000000

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