How to use ext4load and ext4write?

Hello,
For some reasons, I modified the extlinux.conf in /boot/extlinux. Now I enter the uboot by serial console, I want to use ext4load and ext4write to modify the file in uboot. But when I use

  • ext4load mmc 0 0x30008000 /boot/extlinux/extlinux.conf

Then I use md 0x30008000, the context is not what I want, can anyone tell me how to use ext4load or ext4write?

Hi cccffff,

Could you try w/

ext4load mmc 0 0x80080000 /boot/extlinux/extlinux.conf

0x80000000 is where external ddr start.

Thanks a lot. I have successfully fixed the problem.

hi cccffff,
Could you tell me how to use ext4load and ext4write?
#ext4load mmc 0 0x30008000 /boot/extlinux/extlinux.con
How should I correct?

thank you very much