Update-alternatives error when installing deepstream 6.2

I think it’s because your installation directory is wrong.

Deepstream needs to be installed in the /opt directory.

https://docs.nvidia.com/metropolis/deepstream/dev-guide/text/DS_Installation.html

Also make sure the versions of TRT and CUDA match with DeepStream, as described in this link

https://docs.nvidia.com/metropolis/deepstream/dev-guide/text/DS_Installation.html#id9