From the log I can see that only kernel that is found is the zImage_2.6.32.54-openmode_l2fix. However, if even that does not boot, are you sure you have the preinit file correct? (for Harmattan it is /sbin/preinit_harmattan) If preinit file is missing or does not have execute permission then the result is just as you described, black screen with nothing happening.