Skip to content

Latest commit

 

History

History

agx

Folders and files

NameName
Last commit message
Last commit date

parent directory

..
buildroot
buildroot
 
 
extensions
extensions
 
 
hooks
hooks
 
 
kernel
kernel
 
 
metadata
metadata
 
 
resources
resources
 
 
root_overlay
root_overlay
 
 
scripts
scripts
 
 
README.md
README.md
 
 

README.md

NVIDIA Jetson AGX

This package targets the NVIDIA Jetson AGX Orin and Xavier series of boards.

Reference:

Getting Started

Set the comma-separated SKIFF_CONFIG variable:

$ export SKIFF_CONFIG=jetson/agx
$ make configure                   # configure the system
$ make compile                     # build the system

Once the build is complete, it's time to flash the system via USB. You will need to switch to sudo bash for this on most systems.

$ sudo bash             # switch to root
# follow the "Flashing" process described below.

Note: the "flashusb" recovery mode flashing approach will overwrite the "persist" data as well. This is a limitation of the flashing process and partition layout on the internal emmc.

Flashing via USB

Flashing to the internal eMMC is done by booting to the official recovery mode, and flashing the system from there.

The recovery mode of the Jetson AGX is used to flash SkiffOS. Entering recovery:

  • Start with the machine powered off + fully unplugged.
  • Connect a micro-USB cable from the host PC to the target board.
  • Connect the board to power.
  • Hold down the Force Recovery button.
  • Hold down the Power button.
  • Release the Power button.
  • Wait a moment.
  • Release the Force Recovery button.

SkiffOS uses Linux4Tegra flash.sh to flash via USB.

Select your board and set it to SKIFF_NVIDIA_BOARD below:

  • jetson-orin-nano-devkit: Jetson Orin Nano Devkit
  • jetson-agx-orin-devkit: Jetson AGX Orin Devkit

To flash via USB:

export SKIFF_NVIDIA_USB_FLASH=confirm
export SKIFF_NVIDIA_BOARD=jetson-agx-orin-devkit
make cmd/jetson/agx/flashusb

This will run the flash.sh script from L4T, and will setup the kernel, u-boot, persist + boot-up partition mmcblk0p1.

The flash script will overwrite the entire persist partition. This is due to a limitation in the flashing process: the jetson internal EMMC partition layout has a single "app" partition. The recovery mode is used to flash a ext4 image to that partition containing the system files. Partial flashing would need separate partitions to work correctly. Please use the push_image.sh script to update after the initial install, see OTA Updates below.

OTA Updates

After SkiffOS is installed and booted, the system can be over-the-air updated by using the scripts/push_image.sh script:

./scripts/push_image.sh root@myjetsonagx

Available Boards

The following configurations are available in Linux4Tegra:

igx-orin-devkit
jetson-agx-orin-devkit-as-jao-32gb
jetson-agx-orin-devkit-as-nano4gb
jetson-agx-orin-devkit-as-nano8gb
jetson-agx-orin-devkit-as-nx-16gb
jetson-agx-orin-devkit-as-nx-8gb
jetson-agx-orin-devkit-industrial-maxn
jetson-agx-orin-devkit-industrial-qspi
jetson-agx-orin-devkit-industrial
jetson-agx-orin-devkit-maxn
jetson-agx-orin-devkit
jetson-orin-nano-devkit-nvme
jetson-orin-nano-devkit

These can be passed with SKIFF_NVIDIA_BOARD when flashing.

export SKIFF_NVIDIA_BOARD=jetson-agx-orin-devkit-industrial

The default is jetson-agx-orin-devkit.

maxn mode refers to the maximum power mode for NVIDIA's Jetson AGX Orin modules. It allows the module to operate at its highest power and performance levels. For example, in the case of the 32GB Orin module, the MAXN mode corresponds to the 40W power mode. When the module is set to MAXN mode, it operates at its maximum performance capabilities. This mode is typically set using commands such as sudo /usr/sbin/nvpmodel -m 01 but can be set in the board configuration environment variable as well by using:

export SKIFF_NVIDIA_BOARD=jetson-agx-orin-devkit-maxn