Hi Alexander,
Might i need a special arguments for mkimage to set up OS in headers of uImage?
One needs parameters for that, but the information looks ok:
[...]
[fedya@discordy linux-linaro-tracking]$ mkimage -l arch/arm/boot/uImage Image Name: Linux-3.13.0-rc8 Created: Fri Jan 17 15:47:36 2014
Image Type: ARM Linux Kernel Image (uncompressed)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
If you check common/image.c:261 (image_print_type), you'll see that this is correctly decoded from the image, so the image seems perfectly fine. It just makes no sense that U-Boot then complains about an unknown OS. This means that between the time the header is printed and between the time the code wants to boot it, the memory does not contain what it should anymore.
Cheers Detlev