cuda安装错误

记录下来以便之后查阅，错误为下图，看安装错误后的输出文件可以知道：cuda_install_3863.log

An NVIDIA kernel module 'nvidia-drm' appears to already be loaded in your kernel.  This may be because it is in use (for example, by an X server, a CUDA program, or 
         the NVIDIA Persistence Daemon), but this may also happen if your kernel was configured without support for module unloading.  Please be sure to exit any programs    
         that may be using the GPU(s) before attempting to upgrade your driver.  If no GPU-based programs are running, you know that your kernel supports module unloading,   
         and you still receive this message, then an error may have occured that has corrupted an NVIDIA kernel module's usage count, for which the simplest remedy is to     
         reboot your computer.

解决办法如下链接：https://www.cnblogs.com/Assist/p/12449876.html