How to boot Android in imx8mp from grub??

[Axent]

Hello.
I just started work with Android at IMX8MP base processor.
I used all sequence described for building process. 
In final I flashed SD card with:

sudo ./imx-sdcard-partition.sh

And when I start the board evk_8mp, I see just:

But how I can start the Linux itself?? What is the wrong?
Thanks.

[Axent]

I found that I have errors during the booting:

How can I build Android image to run it from SD card? I follow all instructions in Documentation (Android's user Guide)
I can build and flash the image. But it doesn't start from the box.

[Bio_TICFSL]

Hello,

You forget the MX8 switches to eMMC, please check the userguide for this:

https://www.nxp.com/docs/en/user-guide/ANDROID_USERS_GUIDE.pdf

Regards