NVIDIA 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.X
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

The Jetson provides two partions for the kernel kernel and kernel_b the first one can be used to flash a new kernel while kernel_b is a tolerance design for error. Once primary kernel partition is broken, it will fallback to this backup.

If you wish to recompile the kernel you can check this page.

eMMC

1) Put the board in recovery mode and connect it to the host PC

2) Flash the kernel image calling the following command

sudo ./flash.sh -k kernel jetson-xavier mmcblk0p1

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) Flash the kernel image

sudo ./flash.sh -k kernel jetson-xavier sdb1

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) Copy the kernel image

sudo ./flash.sh -k kernel jetson-xavier mmcblk1p1

NFS

1) Put the board in recovery mode and connect it to the host PC

2) Flash the kernel image to the eMMC calling the following command

sudo ./flash.sh -k kernel jetson-xavier mmcblk0p1

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. This assumes that a filesystem already exists in the desired location, if not follow the instructions here

eMMC

cd ..
sudo ./flash.sh -k CPUBL-CFG jetson-xavier mmcblk0p1

USB

cd ..
sudo ./flash.sh -k CPUBL-CFG jetson-xavier sdb1 #it can be other mount point

SD Card

cd ..
sudo ./flash.sh -k CPUBL-CFG jetson-xavier mmcblk1p1 #it can be other mount point

NFC

cd ..
sudo ./flash.sh -N $MY_IPADDRESS:$JETPACK_DIR/Xavier/Linux_for_Tegra/rootfs --rcm-boot -k CPUBL-CFG jetson-xavier eth0 #it can be other mount point