Android 解壓boot.img

 

其實解壓、打包boot.img沒什麼難度一看就會咯！！
   1.先下附件：工具。 點擊打開連接 6.0 KB, 下載次數: 60)      解壓到bin文件夾裏，方便之後使用。
   2.解壓boot.img文件
     去到boot.img所在的文件夾，輸入下面的命令：

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.
        完了以後，你就會發現多了boot.img-kernel 和 boot.img-ramdisk.gz文件，這就是解壓出來的boot.img，其中boot.img-kernel 就是內核，boot.img-ramdisk.gz就是ramdisk。
    
       3.打包boot.img文件

             在替換和內核後，就要對boot.img打包了！！下是代碼:

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就是解壓boot.img是Command line：xxx

new.img文件就是你修改後的boot.img文件了。改個名字替換到ROM裏面就能夠了。！！

 

             new.img文件就是你修改後的boot.img文件了。改個名字替換到ROM裏面就能夠了。！！

 

 

# ./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

 

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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

 

打包ramdisk.img :  find . |cpio -ov -H newc |gzip > ../ramdisk.img

 

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