This is part 1 of my Jetson notes. Part 2, Running the Orin: Power Modes, Benchmarking, and Pitfalls, covers what happens after the board boots.
Preparation
- Jetson Orin Nano Developer Kit (8GB)
- Storage: a MicroSD card (128GB) or an NVMe SSD
- My microSD card’s read and write speed can reach up to 140MB/s. An NVMe SSD could be 1500MB/s or more. So try with an SSD if speed has become a bottle neck
- For how NVMe, SATA, and eMMC differ, see Linux - Storage.
- A data capable USB-C cable
- Complete datasheet (very lengthy, feel free to skip)
- Jetpack SDK Jetpack SDK includes accelerated software libraries, APIs, sample applications, developer tools and documentation.
Flashing Onto an NVMe SSD (Recommended)
- I have crucial SSD
- Follow the latest installation guide
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Choose the NVMe option
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sudo ./tools/kernel_flash/l4t_initrd_flash.sh --external-device nvme0n1p1 \ -c tools/kernel_flash/flash_l4t_t234_nvme.xml -p "-c bootloader/generic/cfg/flash_t234_qspi.xml" \ --showlogs --network usb0 jetson-orin-nano-devkit internal
- Common Issues
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If you see this, reconnect the USB and power of the board.
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Error: Unrecognized module SKU Error: failed to generate images Cleaning up...
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If you see
nfs timeout,1 2 3 4 5
Waiting for device to expose ssh ......Waiting for device to expose ssh ...Run command: flash on fc00:1:1:0::2 SSH ready mount.nfs: Connection timed out Flash failure Either the device cannot mount the NFS server on the host or a flash command has failed. Debug log saved to /tmp/tmp.HVseonQElu. You can access the target's terminal through "sshpass -p root ssh root@fc00:1:1:0::2"
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Then we need to install nfs and change the firewall Setting
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## Install nfs sudo apt update sudo apt install nfs-kernel-server ## Open the nfs port in the firewall sudo ufw status sudo ufw allow from fc00:1:1:0::2 to any port nfs sudo ufw allow from fc00:1:1::/48 to any port nfs
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Flashing Onto an SD Card
I was primarily following this video.
- Use SDK Manager:
https://developer.nvidia.com/sdk-manager - Put the board in recovery mode (by connecting pin
GNDtoFC_RECusing a female-female jumper wire to connect) - Start SDK manager. The flash might fail. If it fails, go to step 4, otherwise, go to step 5
cd ~/nvidia/nvidia_sdk/JetPack_6.0_Linux_JETSON_ORIN_NANO_TARGETS/Linux_for_Tegra && sudo ./flash.sh jetson-orin-nano-devkit mmcblk0p1. This flashed nvidia linux succssfully onto my machine- Configure linux on the board
sudo apt update && sudo apt upgrade && sudo apt install nvidia-jetpackdpkg -l | grep nvidia-jetpackshould see version like6.0-bXXX- [Optional] A diagnostic tool
jtopis recommended but optional:sudo apt install python3-pip && sudo -H pip3 install -U jetson-stats - [Optional]
jtopand go to tab 7. The only missing item should be OpenCV.
After Flashing
If nvcc is not a recognized command, add below to ~/.bashrc:
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export PATH=/usr/local/cuda/bin:$PATH
export LD_LIBRARY_PATH=/usr/local/cuda/lib64:$LD_LIBRARY_PATH
For setting up a machine learning Docker image on the Jetson, see the jetson-containers section in my Docker post.
Appendix: A Failed Attempt (bootFromExternalStorage)
I tried below but the script did NOT WORK on my machine. When running ./flash_jetson_external_storage.sh I see
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cp: cannot stat '/home/rico/Downloads/bootFromExternalStorage/R35.4.1/Linux_for_Tegra/rootfs/lib/modules/5.10.120-tegra/kernel/drivers/mtd': No such file or directory
- Download Jetson Linux and sample file system
- Check the assumptions under Preparing a Jetson Developer Kit for Use. The host system is your own laptop, the target is the Nano.
git clone https://github.com/jetsonhacks/bootFromExternalStorage.git, this is a set of helper scripts.
- Note this is downloading
R35.4.1of Nvidia Linux. So replace all its instances with the current version:for file in *; do sed -i 's/R35.4.1/R36.3.0/g' "$file"; done
