I downloaded the runfile (local) for ubuntu 20.04 from Nvidia Developer site as shown Nvida Local runfile
Then followed the instructions to run the program:
sudo sh cuda_11.3.0_465.19.01_linux.run
The installation failed: here is the error in /var/log/cuda-installer.log :
[INFO]: Driver installation detected by command: apt list --installed | grep -e nvidia-driver-[0-9][0-9][0-9] -e nvidia-[0-9][0-9][0-9]
[INFO]: Cleaning up window
[INFO]: Complete
[INFO]: Checking compiler version...
[INFO]: gcc location: /usr/bin/gcc
[INFO]: gcc version: gcc version 9.3.0 (Ubuntu 9.3.0-17ubuntu1~20.04)
[INFO]: Initializing menu
[INFO]: Setup complete
[INFO]: Components to install:
[INFO]: Driver
[INFO]: 465.19.01
[INFO]: Executing NVIDIA-Linux-x86_64-465.19.01.run --ui=none --no-questions --accept-license --disable-nouveau --no-cc-version-check --install-libglvnd 2>&1
[INFO]: Finished with code: 256
[ERROR]: Install of driver component failed.
[ERROR]: Install of 465.19.01 failed, quitting
There are no further indications of what failed or instructions of what to do. What can/should be done next to move forward?