Hi, All

Android team now has tools for updating the kernel related files without recreating the sdcard.
The detail information about the tools is described here:
https://wiki.linaro.org/Platform/Android/KernelUpdateTools

And here just list some examples:
1. update all the kernel related files with boot.tar.bz2
./update-android.sh out/target/product/pandaboard/boot.tar.bz2

2. only update one file that will be in the boot.tar.bz2 when packaged,
    Like  board.dtb/uImage/cmdline
./update-android.sh out/target/product/pandaboard/boot/board.dtb
./update-android.sh out/target/product/pandaboard/boot/uImage
./update-android.sh out/target/product/pandaboard/boot/cmdline

3. update all kernel modules.
./update-android.sh out/target/product/pandaboard/obj/kernel

4. update files in uInitrd
./update-uInitrd.sh /tmp/init.rc
    this will replace the /ini.rc file in uInitrd with the passed /tmp/init.rc

Hope these tools will be helpful during your development of android.
Any comments/suggestion, please feel free to send to me.

Thanks,
Yongqin Liu
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