Install Debian on mini6410 using SD

Tuxerito
Hi all.

I have a mini6410 board, and I trying to run Debian from a SD but I can't
do it.

I'm following this tutorial.
http://code.google.com/p/mini2440/wiki/Emdebian

Steps I do.

- Install OS with deboostrap.
- Create a EXT3 partition in the SD
- Copy SO to SD
- Copy zImage(included in the DVD) to SD (/)
- Upload u-boot_sd to the NAND.

The problem... I don't know how to tell U-boot how to boot the system from
the SD using the zImage of the SD.


I had lucky in a test where I used a zImage on the NAND and the file system
of the SD. in that test the second stage of debootstrap finish succesfully.
I tried to do the same again but always I got a message error mounting the
SD on /r.


How can I install Debian on a SD and boot from it?

żUsign superboot how I can setup the parameters of uboot?

In all tutorials(mini2440) always I see the setenv command to config de
boot args, but, in superboot how can I do it?

I used the option S of superboot to set parameters like:
console=ttySAC0,115200 noinitrd root=/dev/mmcblk0p2 rootwait=4 rw
init=/bin/sh. That it's the right way?


I'm new in embebed systems and it is a little dificult to me.



Thanks :)


PD: Sorry for my english, I speak spanish.