You need to install the multiboot packages for power-kernel and reinstall one package. Its written down here somewhere http://wiki.maemo.org/Nitdroid_easy_install_on_EMMC or here http://wiki.maemo.org/Kernel_Power Cant reach it at the moment. But should be something like apt-get install multiboot-kernel-power apt-get install --reinstall ...DONT_KNOW_WHICH_ONE_IT_WAS