Hi @nakayonum, are you able to run this test command inside l4t-base container?
sudo docker run -it --rm --net=host --runtime nvidia nvcr.io/nvidia/l4t-base:r32.7.1
python3 -c 'import tensorrt'
If not, something is still wrong with your container runtime or the CSV mounts, and you may want to reinstall these packages:
$ apt-cache search nvidia-container
libnvidia-container-tools - NVIDIA container runtime library (command-line tools)
libnvidia-container0 - NVIDIA container runtime library
libnvidia-container1 - NVIDIA container runtime library
nvidia-container-csv-cuda - Jetpack CUDA CSV file
nvidia-container-csv-cudnn - Jetpack CUDNN CSV file
nvidia-container-csv-tensorrt - Jetpack TensorRT CSV file
nvidia-container-csv-visionworks - Jetpack VisionWorks CSV file
nvidia-container-runtime - NVIDIA container runtime
nvidia-container-toolkit - NVIDIA container runtime hook
nvidia-container - NVIDIA Container Meta Package
Or failing that, to reflash the device so that the container runtime is working again.