image sdcard.img { hdimage { gpt = "true" } partition fsbl1 { image = "u-boot-spl.stm32" } partition fsbl2 { image = "u-boot-spl.stm32" } partition ssbl { image = "u-boot.img" } partition rootfs { image = "rootfs.ext4" partition-type = 0x83 bootable = "yes" size = 256M } }