$ sudo vi /etc/apt/sources.list.d/nvidia-l4t-apt-source.list
结果：
deb https://repo.download.nvidia.com/jetson/common r32.6 main
deb https://repo.download.nvidia.com/jetson/ t194 r32.6 main
$ sudo apt update
$ sudo apt dist-upgrade
$ sudo apt install nvidia-jetpack
//解决jtop中unknown
$ sudo -H pip install -U jetson-stats
