Handy tools suitable for:
- Android boot.img splitting
- Android simg2img convertions
- Allwinner fex2bin and bin2fex utils (sunxi-tools)
All binaries are ELF 32-bit LSB executables. Sorry, OS X guys :(
This tool will unpack the boot.img from any Android device, but AFAIK repacked imgs will work only for Allwinner SOCs. Test carefully.
Simple usage:
./repacker.rb <boot.img>to unpack./repacker.rb <boot_src>to pack
Example:
$ ../allwinner-kitchen/repacker.rb boot.img
$ ../allwinner-kitchen/repacker.rb boot_src.232/
$ tree
.
├── boot.img
├── boot_src.232
│ ├── kernel
│ └── ramdisk
│ ├── data
│ ├── default.prop
│ ├── dev
│ ├── init
│ ├── init.b2g.rc
│ ├── init.goldfish.rc
│ ├── initlogo.rle
│ ├── init.rc
│ ├── init.sun4i.rc
│ ├── init.sun4i.usb.rc
│ ├── proc
│ ├── sbin
│ │ ├── adbd
│ │ └── ueventd -> ../init
│ ├── sys
│ ├── system
│ ├── ueventd.goldfish.rc
│ ├── ueventd.rc
│ └── ueventd.sun4i.rc
└── boot_src.232.img
8 directories, 16 files
allwinner-kitchen/tools $ ls
bin2fex fex2bin fexc make_ext4fs mkbootfs mkbootimg mkuserimg.sh simg2img split_bootimg.pl
Let's convert system.img to ext4 using the simg2img:
$ allwinner-kitchen/tools/simg2img system.img system_new.img
$ file system.img
system.img: data
$ file system_new.img
system_new.img: Linux rev 1.0 ext4 filesystem data, UUID=57f8f4bc-abf4-655f-bf67-946fc0f9f25b (extents) (large files)