安装最新内核后，我的系统无法再启动 nvidia 守护程序。仔细检查后发现 NVIDIA 模块缺失linux-image-5.4.0-96-generic：
sudo apt-get install --reinstall linux-image-generic linux-image-5.4.0-96-generic linux-headers-5.4.0-96-generic
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
android-studio-4.1 cuda-command-line-tools-10-2 cuda-compiler-10-2 cuda-cudart-10-2 cuda-cudart-dev-10-2 cuda-cufft-10-2 cuda-cufft-dev-10-2 cuda-cupti-10-2 cuda-cupti-dev-10-2 cuda-curand-10-2
cuda-curand-dev-10-2 cuda-cusolver-10-2 cuda-cusolver-dev-10-2 cuda-cusparse-10-2 cuda-cusparse-dev-10-2 cuda-documentation-10-2 cuda-driver-dev-10-2 cuda-libraries-10-2 cuda-libraries-dev-10-2
cuda-memcheck-10-2 cuda-misc-headers-10-2 cuda-npp-10-2 cuda-npp-dev-10-2 cuda-nsight-10-2 cuda-nsight-compute-10-2 cuda-nsight-systems-10-2 cuda-nvcc-10-2 cuda-nvgraph-10-2 cuda-nvgraph-dev-10-2
cuda-nvjpeg-10-2 cuda-nvjpeg-dev-10-2 cuda-nvml-dev-10-2 cuda-nvprof-10-2 cuda-nvprune-10-2 cuda-nvrtc-10-2 cuda-nvrtc-dev-10-2 cuda-nvtx-10-2 cuda-nvvp-10-2 cuda-samples-10-2 cuda-sanitizer-api-10-2
cuda-toolkit-10-2 cuda-tools-10-2 cuda-visual-tools-10-2 golang-1.15-go …