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Notes on programming/interfacing with Jetson Orin hardware.
# Upgrading AGX to Jetson Linux 36.3
## BSP approach (avoids SDK Manager)
* Requires Ubuntu 22.04. Very unhappy to work on Gentoo.
* Requires Intel/AMD 64bit CPU.
* Download "Driver Package (BSP)" from https://developer.nvidia.com/embedded/jetson-linux
* Unpack (as root, get used to doing most of this as root), preserving privileges
- `tar xjpf ...`
* Download "Sample Root Filesystem"
* Unpack (as root..) into rootfs directory inside of the BSP archive above.
* Run './apply_binaries.sh' from the BSP
- Note: If apply_binaries (or frankly, anything, this is brittle) fails, remove and recreate rootfs - the OS might be left in an unbootable state.
* Reboot AGX into "Recovery Mode" - hold the recovery button and reset button, release simultaneously ((sic) reset first?)
* Connect USB-C cable to the debug port ("front" USB-c)
* Nvidia AGX device should appear in the `lsusb`
* Run './nvautoflash.sh'
* Watch for few minutes, typically it crashes early, then go for lunch.
