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How to enable extra kernel modules when compiling from source?


Go to solution Solved by Werner,

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Posted

Hi, I'm new to Armbian and this is my first time ever compiling any Linux system. I'm sorry to bother you with such a basic question, but I just don't understand. I want to enable a kernel module. Upon browsing the kernel configuration utility menus, I don't see this functionality anywhere. But if I run search with '/', I find this, this is the module I want:

 

image.png.e8b10162720df75baffb61feb8161c4b.png

 

How do I now proceed to enable it? Or make sure that it's enabled (if present by default)?

Also, what's the meaning of =y and =m? It's listed in the resulting .config file as =y, just as the search shows.

  • Solution
Posted

Hi,

 

=y means the driver/functionality is directly compiled into the kernel

=m means it will be built and made available as kernel module

 

Posted

Thank you very much, that explains it.

One nitpick, definitely not worth a separate thread. compile.sh suggested that I should first run it with the "kernel-config" option, and after it runs, it says to build using make. But that doesn't work as no makefiles are created. The two-stage process (first configure, then compile) makes a lot of sense to me, but how to run the second stage?

Posted

There are actual two ways. You can use ./compile.sh KERNEL_CONFIGURE=yes which will continue to assemble an image with the modified config file which is more user friendly.

On the other hand there is ./compile.sh kernel-config which will export the modified kernel config into output/ folder and stops there which is more developer friendly.

If you chose latter route you need to move the exported config to userpatches or overwrite the one in config/kernel/. Once you done that simply execute ./compile.sh and the modified config will be used.

Posted (edited)

Thanks! So everything works fine, it's only the "run make" instruction that's misleading. Other than that, I have successfully compiled Armbian and it runs perfectly!

Edited by VioletGiraffe

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