How read the entire 64 GB flash eMMC Android

I am trying to cut whole 64GB eMMC and save it into all.img , Which can be use for eMMC duplicator or programmer .

I already use ./nvflash_linux --rawdevicewrite 0 3849216 all.img --bl fastboot.bin --go but just give me 16GB .

I will be appricated any help or comment on this.


Are you talking about the Jetson TK1, custom hardware, or Jetson Pro (also Tegra K1)? The JTK1 eMMC is 16GB, this would be a correct value for that platform. The root partition is around 15GB max, all else is in small partitions for 16GB total.