This is what I do: step 1: download image http://releases.linaro.org/13.10/ubuntu/panda/panda-raring_developer_2013102... and flash it to my SD card. test it on pandaboard, run well.
step 2: setup toolschain with http://releases.linaro.org/13.04/components/toolchain/binaries/gcc-linaro-ar...
step 3: download kernel source code from http://releases.linaro.org/13.10/components/kernel/linux-linaro/linux-linaro..., uncompress to dir kernelSrc cp SdCard/rootfs/boot/config-3.12.0-1-linaro-omap kernelSrc/.config
step 4: cd kernelSrc LOADADDR=0x80008000 make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- uImage -j8 copy arch/arm/boot/uImage to SdCard/fat32partion/ replace the offical uImage
step 5: test the SD card again, run failure. the console message stop on Starting kernel ...
Could you help me, How to rebuild the ubuntu kernel correctly?