thank you very much, but I was already following the Kane Jiang tutorial in the NXP community to install Debian 8 Jessie Rootfs on the NXP i.MX6ULL EVK board, but the only difference is that I would like to do it on the IMX 7Dual Saber board, I do It well in the beginning, but up to section c: Download and make the kernel and dtb, I receive compilation errors and I am a little lost.
Here is the link to the tutorial: https://community.nxp.com/docs/DOC-334274.
Thanks