I attempted to enable the MPTCP function by modifying defconfig or.config: [image] but encountered the following error message: [img_v3_0211h_c56b67ce-d66a-4b9a-8209-d630e40e01ag] I followed this procedure to operate: Kernel Customization — NVIDIA Jetson Linux Developer Guide I have updated the module by executing “make modules” step. This error confused me a long time，thanks!

Did you run following prior to flashing your board? Linux_for_Tegra$ sudo ./apply_binaries.sh --openrm # Is your $(uname -r) equivilent to your *.ko modules? modinfo $(lsmod |grep -i mptcp) modinfo nvidia | grep -E 'filename|vermagic' modinfo nvidia-modeset | grep -E 'filename|vermagic' modinfo nvidia-drm | grep -E 'filename|vermagic' dpkg -S "$(modinfo -n nvidia)" # nvidia-l4t-kernel-openrm: /lib/modules/6.8.12-tegra/updates/opensource-gpu-disp/nvidia.ko apt search nvidia-l4t-kernel-openrm # nvidia-l4t-kernel-openrm/stable,now 6.8.12-tegra-38.4.0-20251230160601 arm64 [installed] # NVIDIA Kernel Package containing OpenRM specific files

I have run the first line prior to flashing my board, but I didn’t run the subsequent commands, I will run the remaining lines as your suggestions, it‘s grateful for your advertise! Below is my whole flashing process: ``` cd /opt/T5000/bsp/Linux_for_Tegra/source make ARCH=arm64 menuconfig -C kernel/kernel-noble/ make ARCH=arm64 savedefconfig -C kernel/kernel-noble/ make -C kernel sudo -E make install -C kernel cp kernel/kernel-noble/arch/arm64/boot/Image /opt/T5000/bsp/Linux_for_Tegra/kernel/Image make modules sudo -E make modules_install make dtbs cp kernel-devicetree/generic-dts/dtbs/ /opt/T5000/bsp/Linux_for_Tegra/kernel/dtb/* cd /opt/T5000/bsp/Linux_for_Tegra sudo ./tools/l4t_flash_prerequisites.sh sudo ./apply_binaries.sh --openrm sudo ./tools/l4t_update_initrd.sh sudo ./l4t_initrd_flash.sh jetson-agx-thor-devkit internal ```

I cannot access into the debug USB-uart, so I just run cmds in the PC-host path: Linux_for_Tegra/rootfs/lib/modules/6.8.12-tegra/updates/opensrc-disp$ modinfo nvidia.ko | grep -E ‘filename|vermagic’ filename: /opt/T5000/bsp/Linux_for_Tegra/rootfs/lib/modules/6.8.12-tegra/updates/opensrc-disp/nvidia.ko vermagic: 6.8.12-tegra SMP preempt mod_unload modversions aarch64 Linux_for_Tegra/rootfs/lib/modules/6.8.12-tegra/updates/opensrc-disp$ modinfo nvidia-modeset.ko | grep -E ‘filename|vermagic’ filename: /opt/T5000/bsp/Linux_for_Tegra/rootfs/lib/modules/6.8.12-tegra/updates/opensrc-disp/nvidia-modeset.ko vermagic: 6.8.12-tegra SMP preempt mod_unload modversions aarch64 Linux_for_Tegra/rootfs/lib/modules/6.8.12-tegra/updates/opensrc-disp$ modinfo nvidia-drm.ko | grep -E ‘filename|vermagic’ filename: /opt/T5000/bsp/Linux_for_Tegra/rootfs/lib/modules/6.8.12-tegra/updates/opensrc-disp/nvidia-drm.ko vermagic: 6.8.12-tegra SMP preempt mod_unload modversions aarch64 Linux_for_Tegra/rootfs/lib/modules/6.8.12-tegra/updates/opensrc-disp$ dpkg -S “$(modinfo -n nvidia.ko)” dpkg-query: no path found matching pattern /opt/T5000/bsp/Linux_for_Tegra/rootfs/lib/modules/6.8.12-tegra/updates/opensrc-disp/nvidia.ko Linux_for_Tegra/rootfs/lib/modules/6.8.12-tegra/updates/opensrc-disp$ apt search nvidia-l4t-kernel-openrm Sorting… Done Full Text Search… Done

I wrote these when I was having trouble making kernel, dtbs and modules that would install and work for Thor. This method uses native Nvidia nvbuild.sh and compiles the Nvidia Out-of-tree modules. I think that was where I had missed things. The scripts work on Thor, or on x86_64/amd64 host. If you already have downloaded the Nvidia *.tbz2 files put them in the same directory as these scripts so they won’t be downloaded again. nvbuild-kernel-dtb-and-Modules.sh.txt (3.5 KB) jetpack-download-extract.sh.txt (4.4 KB)

I have used your two sh scripts and executed “cp kernel_out/kernel/kernel-noble/arch/arm64/boot/Image /opt/T5000/bsp/Linux_for_Tegra/kernel/Image” and "cp kernel_out/kernel-devicetree/generic-dts/dtbs/ /opt/T5000/bsp/Linux_for_Tegra/kernel/dtb/"* manually before flashing, but still display the same log as the picture I have listed, looks like the nvidia.ko is not quite matches with the kernel Image.

export ARCH=arm64 export KERNEL_HEADERS="$PWD/Linux_for_Tegra/source/kernel/kernel-noble" export kernel_name=noble export INSTALL_MOD_PATH="/opt/T5000/bsp/Linux_for_Tegra/rootfs/" cd Linux_for_Tegra/source source ../../jetpack-env.sh ./nvbuild.sh -o "$PWD/kernel_out" -i # "-i" = install modules

I just operated the scripts as you described, but still display “Unknown symbol xxx”, I noticed this post which is a similar problem on Thor: [JetPack 7.1 R38.4] nvidia-display-install questions - Jetson Systems / Jetson Thor - NVIDIA Developer Forums Nvidia official adivice is to copy the .ko files from “rootfs/lib/modules/6.8.12-tegra/updates/opensrc-disp” directory to the “rootfs/lib/modules/6.8.12-tegra/updates/opensource-gpu-disp”， and the OS successfully started after I tried it. What puzzled me is why there are three .ko files locations(size are different from each other): $ sudo find . -name nvidia.ko -ls [sudo] password for stalker: 1966110 21580 -rw-r--r-- 1 root root 22094473 5月 11 16:49 ./rootfs/usr/lib/modules/6.8.12-tegra/updates/opensrc-disp/nvidia.ko 1966140 18688 -rw-r--r-- 1 root root 19136009 12月 31 08:06 ./rootfs/usr/lib/modules/6.8.12-tegra/updates/opensource-gpu-disp/nvidia.ko 2401451 21576 -rw-rw-r-- 1 stalker stalker 22093752 5月 11 15:33 ./source/kernel_out/unifiedgpudisp/kernel-open/nvidia.ko and why executing sudo ./apply_binaries.sh --openrm to obtain four inaccurate ko files?

Hi DaneLLL, Thanks for your assistance, I have fixed the problem by editing this Makefile file in JetPack7.1: Linux_for_Tegra/source/Makefile: 154,155c154 < # $(MAKE) -C $(KERNEL_OUTPUT) INSTALL_MOD_DIR=updates/opensrc-disp < $(MAKE) -C $(KERNEL_OUTPUT) INSTALL_MOD_DIR=updates/opensource-gpu-disp \ and I found JetPack7.2 will deploy the *.ko files to the "opensource-gpu-disp" directory automatically after compiling modules.

Enable MPTCP on T5000 Thor, but stucked during UI display stage

Robotics & Edge Computing Jetson Systems Jetson Thor

DaneLLL June 3, 2026, 6:13am 11

Hi,
It may not work well if you build only modules. Please build kernel and modules:
Kernel Customization — NVIDIA Jetson Linux Developer Guide
Kernel Customization — NVIDIA Jetson Linux Developer Guide

Here is a real practice on Jetpack 6 Orin:
No data from Joystick Logitech-f710 - #10 by DaneLLL

The steps are similar on Jetpack 7 Thor.

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Enable MPTCP on T5000 Thor, but stucked during UI display stage

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