Maybe you are so kind to give me a hint: Try to migrate from Kernel 33 to 37. Currently I don't see any message after Verifying Checksum ... OK Loading Kernel Image ... OK OK Starting kernel ... >From what I understand kernel starts with start_kernel()). What is best way to find out which part is failing? At which point I do a printk to see what's going on, or at least set a GPIO Pin of the processor? How to debug without any external tools like JTAG. -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html