最終更新:2016-06-28 (火) 13:46:48 (2857d)

split_bootimg.pl

Split appart an Android boot image created with mkbootimg. The format can be found in AOSP/system/core/mkbootimg/bootimg.h?

boot.imgを分割する。

http://www.enck.org/tools/split_bootimg_pl.txt

http://www.enck.org/tools.html

例

./split_bootimg.pl boot.img 
Page size: 2048 (0x00000800)
Kernel size: 6599912 (0x0064b4e8)
Ramdisk size: 1762005 (0x001ae2d5)
Second size: 43008 (0x0000a800)
Board name: 
Command line: 
Writing boot.img-kernel ... complete.
Writing boot.img-ramdisk.gz ... complete.
Writing boot.img-second.gz ... complete.

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boot.imgのフォーマット

=format (from bootimg.h)
** +-----------------+
** | boot header     | 1 page
** +-----------------+
** | kernel          | n pages
** +-----------------+
** | ramdisk         | m pages
** +-----------------+
** | second stage    | o pages
** +-----------------+

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メモ

a second file that happens to be the .dtb file.

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メモ

boot.img-kernelとboot.img-ramdisk.gzが生成される

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Cygwin

perlをインストール。

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メモ

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Nexus 7 (2013)

JSS15Q?

$ split_bootimg.pl boot.img
Page size: 2048 (0x00000800)
Kernel size: 6640128 (0x00655200)
Ramdisk size: 399979 (0x00061a6b)
Second size: 0 (0x00000000)
Board name:
Command line: console=ttyHSL0,115200,n8 androidboot.hardware=flo user_debug=31 msm_rtb.filter=0x3F ehci-hcd.park=3
Writing boot.img-kernel ... complete.
Writing boot.img-ramdisk.gz ... complete.

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Nexus 5

MRA58K

$ split_bootimg.pl boot.img
Page size: 2048 (0x00000800)
Kernel size: 8467616 (0x008134a0)
Ramdisk size: 904360 (0x000dcca8)
Second size: 0 (0x00000000)
Board name:
Command line: console=ttyHSL0,115200,n8 androidboot.hardware=hammerhead user_debug=31 maxcpus=2 msm_watchdog_v2.enable=1
Writing boot.img-kernel ... complete.
Writing boot.img-ramdisk.gz ... complete.

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