Couple quick questions. Does 0:3 have to be a fat partition? How might one make a boot.scr to point to first partition of mmc? Does the uboot also support boot.txt like the Pandora?

edit:

OK....to make a boot.scr you create a file and place your arguments inside it. For my example I use boot.cmd Inside that file I attempt to direct uboot to partition 3 on the SD card for uImage then to SD card partition 1 with filesystem ext2 rootfs.

This is the command will build your custom boot.scr

I keep failing with my arguments. Can anyone provide a snippet or a source where I can read about the arguments, the format of the file etc? I'm only finding copypasta examples and that doesn't help one understand what they're trying to change until it works properly.