Cannot install CUDA on Ubuntu 18.04 arm64 because of invalid GPG key

Autonomous Machines Jetson & Embedded Systems Jetson AGX Xavier
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Following the instructions in Updating the CUDA Linux GPG Repository Key | NVIDIA Technical Blog to update the CUDA GPG key on a Xavier running Jetpack 4.6. It seems like the GPG key for 18.04 (arm64) hasn’t been updated. I see that the x86_64 key has been updated for 18.04 though.

cuda key
cuda key2050×236 25.3 KB

cuda key x86
cuda key x861992×292 33.9 KB

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Hi,

Could you share how you install or upgrade the CUDA toolkit and the corresponding error (if any)?

In general, we can install CUDA as below:

$ sudo apt update
$ sudo apt install cuda-toolkit-10-2

Thanks.

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