Enabling CUDA in ArchLinux WSL2

~~This article is deprecated, use pure Linux instead~~

Troubleshoot

libcuda cannot link

when using,

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/sbin/ldconfig.real: Can't link /usr/lib/wsl/lib/libcuda.so.1 to libcuda.so.1.1

According to

https://github.com/microsoft/WSL/issues/5548 https://github.com/microsoft/WSL/issues/5663 https://gist.github.com/slavistan/53c8e2627bf9ca202ab6c56ef4d5c497

/usr/lib/wsl/lib is casted from windows and all of them is treated as files. should create a new casting folder:

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 sudo ln -s /usr/lib/wsl/lib/libcuda.so.1 /usr/local/cuda/lib64/libcuda.so

method 2:

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echo -e "[automount]\nldconfig = false" | sudo tee -a /etc/wsl.conf

sudo mkdir /usr/lib/wsl/lib2
sudo ln -s /usr/lib/wsl/lib/* /usr/lib/wsl/lib2
echo /usr/lib/wsl/lib2 | sudo tee /etc/ld.so.conf.d/ld.wsl.conf

method 3 (For Windows 11 users):

add the following to /etc/wsl.conf:

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[boot]
command = sleep 10 ; mount --bind /usr/lib/wsl/lib /usr/lib/wsl/lib2 -o X-mount.mkdir ; umount /usr/lib/wsl/lib