I'd like to know if it's possible to add more partitions in the partition table, and how. I've tested to change the genimage.cfg but it seems that support/scripts/genimage.sh doesn't create it.

Thank you in advance.

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1 Answer

Using the genimage.cfg script is the right way to go.

If it does not work, you might be modifying the wrong config file; genimage is usually invoked by a script specified as Make sure to modify the right config file however, the one used by the script defined in the BR2_ROOTFS_POST_IMAGE_SCRIPT option, under System configuration-> Custom scripts to run after creating filesystem images in menuconfig.

For example, I modified mine (specifically boards/raspberrypi3-64/genimage-raspberrypi3-64.cfg to accomodate for an extra ext4 partition.

image boot.vfat { vfat { files = { "bcm2710-rpi-3-b.dtb", "bcm2710-rpi-3-b-plus.dtb", "bcm2837-rpi-3-b.dtb", "rpi-firmware/bootcode.bin", "rpi-firmware/cmdline.txt", "rpi-firmware/config.txt", "rpi-firmware/fixup.dat", "rpi-firmware/start.elf", "rpi-firmware/overlays", "Image" } } size = 32M
}
image sdcard.img { hdimage { } partition boot { partition-type = 0xC bootable = "true" image = "boot.vfat" } partition rootfs { partition-type = 0x83 image = "rootfs.ext4" } partition log { partition-type = 0x83 image = "log.ext4" }
}

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