nVidia CUDA with the wrong video card

In trying to build my first crypto rig I wanted to be able to get it functional with the GPU instead of the CPU.

I had originally installed an nVidia GeForce GT 710 but came to find out later that its not a supported GPU for use with CUDA per developer.nvidia.com.

Lucky for me I had a video card to “Upgrade” to, which was an nVidia GeForce GT 630, which supports Version 2.1 of CUDA-Enabled Compute Capability.

I did have to download and install the nVidia Linux X64 driver, and without knowing that the install required kernel-devel so it could built the driver correctly.

The only thing blocking me is it seemed my build of libxmrig-cuda.so was built with the CUDA 11.6 API and the Linux X64 driver does not support that. In fact, running nvidia-smi tells me that the driver supports CUDA version 11.4, so looks like i’ll have to rebuilt my driver with 11.4.

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grub2 for Windows 10 after installing Rocky 8.5

So, I came into a hiccup, and the amount of time it took to diagnose and resolve seemed like it should be something I documented.

In doing the initial installation of Rocky 8.5 on the computer that my kids sometimes use that runs Windows 10 I wasn’t really given the opportunity to configure a multiboot. Instead, the system happily booted Rocky 8.5 and nothing else.

Additionally, running os-prober didn’t really find another operating system, so I had to do some manual work.

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