Uploading custom Yocto image to Jetson Nano (non-devkit) eMMC?

I’m building a yocto image to run on the Jetson Nano. Right now I’m working on a Jetson Nano devkit which boots from the SD-card, and the flashing is described on the meta-tegra GitHub repo wiki: https://github.com/madisongh/meta-tegra/wiki/Flashing-the-Jetson-Dev-Kit. It doesn’t say how to flash onto the eMMC on the Jetson Nano, only on the SDcard.

Do I need to copy the contents of the SDCard image to the nvidia_sdk L4T tools (replacing the ‘rootfs’ folder)? but what about the rest of the folders (bootloader, kernel, lib, nv_tegra)?

How would I go about this?

Does you nano have emmc?
You just need flash it by below command to flash and boot to emmc.

sudo ./flash jetson-nano-emmc mmcblk0p1

The flash command you stated is only for the official image downloaded via the NVIDIA SDK manager, right? I don’t think it’s that easy with a custom image from Yocto. An Issue has been raised on the meta-tegra layer github page (https://github.com/madisongh/meta-tegra/issues/180) with this exact problem, but it appears it has reached a stand still on the discussion at the moment.

You can try to backup the image from the sd and flash it to emmc.
Have a reference to below link for backup