Xavier/JetPack 5.0.2/Flashing Board/Flash Kernel

NVIDIA®Jetson Xavier™
Introduction
SoM Overview Carrier Boards NVIDIA Xavier Developer Kit Connect Tech Rogue Connect Tech Mimic Software Support NVIDIA JetPack
JetPack 5.0.2
Getting Started Installing JetPack Flashing the board with GUI installer JetPack Components Compiling Source Code Flashing the Board from Cmdline Performance Tuning Evaluating Performance Set Values Manually Tuning Power Maximizing Performance
Development in the Board
Getting into the Board Using Serial Console Using SSH Using Ubuntu Login Installing Packages
Video Capture and Display
Description Supported Cameras Imx219 Driver Software Support Using GStreamer Using Libargus
Processors
HD Audio and Video Subystem Video Encoder Video Decoder JPEG Encoder and Decoder Video Image Compositor Audio Processing Engine Deep Learning Accelerator Volta GPU Description Using CUDA Using OpenGL
Interfaces
I2C SD/eMMC Controller USB Controller
GStreamer Pipelines
Capture and Display H264 H265 VP9 MPEG4 Simultaneous Streams Compositor
Deep Learning
TensorRT Using TensorRT integrated with Tensorflow Parsing a Tensorflow model for TensorRT Parsing Caffe model for TensorRT Building TensorRT API examples Deep Learning Accelerator Software Support Deep Learning Tutorials Jetson Inference Jetson Reinforcement
RidgeRun Products
GstPTZR GstCUDA GstColorTransfer GstWebRTC GstRtspSink GstInterpipe GstInference GStreamer Daemon GstShark
Reference Documentation
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Flash Kernel

To flash your kernel you just need to copy it to /boot in your filesystem. The old method to flash it in the LNX partition (./flash.sh -k LNX <target_board> mmcblk1p1) is no longer used. If you wish to recompile the kernel you can check this page.

eMMC

1) Access the device using ssh. This is necesary since you will need root permissions to copy to the /boot directory

ssh nvidia@$TEGRA_IP

2) Use scp to copy the kernel image

sudo scp $MY_IPADDRESS:$TEGRA_KERNEL_OUT/arch/arm64/boot/Image /boot  #Your source image might be in another location

USB Card

1) Insert your USB flash/drive in your PC and check where it was mounted:

$ mount
/dev/sdb1 on /media/$USER/EF02-5626 type vfat (rw,nosuid,nodev,uid=1000,gid=1000,shortname=mixed,dmask=0077,utf8=1,showexec,flush,uhelper=udisks2)

2) Mount and copy the kernel image

DEVDIR=/home/$USER/devdirs/
mkdir $DEVDIR/images/fs
sudo mount /dev/sdb1 $DEVDIR/images/fs 
sudo cp $TEGRA_KERNEL_OUT/arch/arm64/boot/Image $DEVDIR/images/fs/boot/ #Your source image might be in another location

SD Card

This process is similar to the USB flashing

1) Insert your USB flash/drive in your PC and check where it was mounted:

$ mount
/dev/mmcblk1p1 on /media/$USER/EF02-5626 type vfat (rw,nosuid,nodev,uid=1000,gid=1000,shortname=mixed,dmask=0077,utf8=1,showexec,flush,uhelper=udisks2)

2) Mount and copy the kernel image

DEVDIR=/home/$USER/devdirs/
mkdir $DEVDIR/images/fs
sudo mount /dev/mmcblk1p1 $DEVDIR/images/fs 
sudo cp $TEGRA_KERNEL_OUT/arch/arm64/boot/Image $DEVDIR/images/fs/boot/ #Your source image might be in another location

NFS

If you followed the guide here, the NFS /boot directory will be located in:

JETPACK_DIR=/home/$USER/JetPack/
sudo cp $TEGRA_KERNEL_OUT/arch/arm64/boot/Image $JETPACK_DIR/Xavier/Linux_for_Tegra/rootfs/boot/ #Your source image might be in another location

Rebuilding DTB

To modify the DTS and rebuild the DTB

1. Locate the cbo.dts file in this directory:

JETPACK_DIR=/home/$USER/JetPack/
cd $JETPACK_DIR/Xavier/Linux_for_Tegra/bootloader/

2. Modify the file as necessary

3. Enter this command to convert the DTS to a DTB:

$JETPACK_DIR/Xavier/Linux_for_Tegra/kernel/dtc -I dts -O dtb -o cbo.dtb cbo.dts

4. Flash the partition CPUBL-CFG.

cd ..
sudo ./flash.sh jetson-xavier CPUBL-CFG