Hi, my rootfs is put in SD card, and is not packaged, specifically, there are /bin, /boot, /dev, /user ... in my second partition of SD card. The linux kernel can mount this rootfs and it works well.
Now I want to sign my rootfs, so I want to make the rootfs as an image. Specifically, I want to make the rootfs as imx-imx6qsabresd.ext4, and put imx-imx6qsabresd.ext4 in my second partition of SD card. How can linux kernel work with this type of rootfs?
I am new with rootfs, can anyone give me some suggestions? thanks a lot.