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Is it possible to sign a dkms driver on an Ubuntu 20.04 image that's restored on many machines?

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I am following this guide:

Automatic Signing of DKMS-Generated Kernel Modules for Secure Boot (Nvidia Driver on CentOS 8 as Example)

I am adapting it for a biometric device driver (Nitgen VenusDrv).

I want to sign it because we have a lot of Lenovo machines that comes with Secure Boot activated.

I'm unaware of how this process works. If I restore an image on many machines, would it keep working, or it's bound to a single machine?

mangohost

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