Re: How do you tell what options are compiled in your kernel

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On Fri, 17 Oct 2003 07:51:43 -0700, Douglas Phillipson wrote:

> > The easiest way is to do a make "oldconfig".  That will load all of your old
> > configuration and then do a "make xconfig" or which ever one you use.
>
> Forgive me for not yet being a kernel expert.  Before I do this what 
> exactly does "make oldconfig" do?

It configures the kernel source tree with the kernel configuration
settings from file ".config" in kernel root directory. The interactive
alternative is to run "make menuconfig" (or "make xconfig").

> Where does it get the config file from?

File ".config", e.g. /usr/src/linux-2.4/.config

> Does it grab the config file that matches the running kernel?

No. That is a manual step.

  cp /boot/config-$(uname -r) /usr/src/linux-2.4/.config


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