project's home page http://gitorious.org/ac100/abootimg

abootimg is a tool created by Gilles Grandou for manipulating Android Boot Images directly from the AC100 (Be carefull to not mess your bootimg or you will need NVidia's nvflash to flash again a bootable image). abootimg can work directly on block devices, or, the safest way, on a file image.

For further informations, read the README.

• reading current boot image

abootimg -i /dev/mmcblk0p2

• extracting current bootable image

cd /tmp/bootimg
abootimg -x /dev/mmcblk0p2

• updating the kernel on a copy of the current bootable image

  dd if=/dev/mmcblk0p2 of=/tmp/part-6.img
  abootimg -u /tmp/part-6.img -k /boot/vmlinuz

Thank you very much for this great tools ggrandou!