Neardi Jetson Orin Compilation and Flashing Guide

Nvidia
1

This guide walks through the process of compiling the system and flashing it onto an NVIDIA Jetson Orin device using the Linux for Tegra (L4T) package.

1. Compilation Steps

Step 1: Enter the rootfs directory

cd rootfs

Step 2: Extract the root filesystem (run once only)

sudo tar -xpf Tegra_Linux_Sample-Root-Filesystem_R36.3.0_aarch64.tbz2 -C ../Linux_for_Tegra/rootfs/ && sync

Step 3: Go to the Linux_for_Tegra directory

cd ../Linux_for_Tegra

Step 4: Apply NVIDIA binary blobs (run once only)

sudo ./apply_binaries.sh && sync

Step 5: Create default user (for initial boot)

sudo ./tools/l4t_create_default_user.sh -u neardi -p neardi

During this step, an interactive prompt will appear.
When prompted, select Apply and press Enter to confirm.

Step 6: Go to the source build directory

cd ../source/build/

Step 7: Start the build process

./build.sh

2. Flashing the Device

Step 1: Connect the Jetson board to your PC via USB
Use a USB Type-C cable to connect the Jetson Orin Nano to your Ubuntu host.

Step 2: Put the board into recovery mode
To enter recovery mode:

  • Press and hold the two outermost buttons on the carrier board.
  • Release the outermost button after 3 seconds, then release the other one.
  • Verify that the board is in recovery mode using:
lsusb

If you see a device listed as NVIDIA Corp. APX, the board is in recovery mode.

Step 3: Install prerequisites (for the first-time flashing)
Before the first flash, install required dependencies:

cd Linux_for_Tegra
sudo ./tools/l4t_flash_prerequisites.sh

Note:
Ensure the Linux_for_Tegra/rootfs directory exists before flashing.
After unpacking the root filesystem, always run apply_binaries.sh to install necessary NVIDIA drivers and libraries.

Step 4: Flash the device
Use the following command to flash the system to an external NVMe drive:

sudo ./tools/kernel_flash/l4t_initrd_flash.sh \
  --external-device nvme0n1p1 \
  -p "-c ./bootloader/generic/cfg/flash_t234_qspi.xml" \
  -c ./tools/kernel_flash/flash_l4t_t234_nvme.xml \
  --showlogs \
  --network usb0 \
  jetson-orin-nano-devkit \
  nvme0n1p1