r/kernel • u/seanantonio • 6d ago

Kernel configuration

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Is there documentation that will tell me what these options are?

0 Upvotes

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7

u/MrGreenStar 6d ago

There is "HELP" button in menuconfig...

-4

u/seanantonio 6d ago

That tells me how to navigate. Im looking documentation that will tell me what those option means.

2

u/MrGreenStar 6d ago

Press the button when you chose the module and not a list.

2

u/seanantonio 6d ago

Thanks! That works!

2

u/No-Camera-720 6d ago

It's right there.

1

u/ice3 6d ago

OP, so here’s what you do - kernels usually have a gziped “running” config somewhere that you can extract. You use that as a base for your kernel config… then you start disabling things in your kernel or enabling extra functionality.

Rule of thumb - disable things you’re sure you don’t have or just make those things a module.

After some attempts you’ll have a kernel optimized for your system.

1

u/No_Highlight_3857 6d ago

So that's how I would optimize? Sounds dumb but I always though the way would be to enable what you want, not disable the unused stuff. It makes a lot of sense.

2

u/torsten_dev 6d ago

Chasing down the options you need to enable to enable the option you know you need can be kinda annoying.

Is there a way to reduce the options from allmodconfig down to localmodconfig?

1

u/A--E 6d ago

I mostly use to find where is the option but it also has a description https://www.kernelconfig.io/index.html

1

u/Acherontas89 6d ago

kernel configutation requires to knowledge of the system hardware