Then run:
image rootfs.ext4 ext4 mountpoint = "/"
GenImage is a powerful and flexible tool that generates filesystem images (e.g., ext2/3/4, FAT, ubifs, squashfs, and more) from a given directory. Instead of manually partitioning, formatting, and copying files, you provide GenImage with a configuration file and a root directory, and it produces a bootable or mountable image. genimage
# Raw binary at 0x0 (before GPT) blob image = "u-boot-spl.bin" offset = 0x0 size = 256K Then run: image rootfs