On Sun, 15 May 2005 [email protected] wrote:
> On Sun, 15 May 2005 09:03:42 +0200, Borislav Petkov said:
> > On Thursday 12 May 2005 23:17, Edgar Toernig wrote:
> > > jmerkey wrote:
> > > > Scott Robert Ladd wrote:
> > > > >Is there a utility that creates a .config based on analysis of
> the
> > > > >target system?
> > how about /proc/config.gz.. although this was pretty recent IIRC.
> That describes the currently running kernel *as built* - so for instance
> booting a RedHat kernel on almost anything will show 3 zillion things
> built as modules - including 2.5 zillion things that aren't needed in
> the
> current config (for instance, every single sound card driver may be
> included).
> What is desired is a utility that will do an lspci/lsusb/etc and build
> up
> a .config that matches *the current hardware* (for instance, only
> including
> a module for the one sound card that's actually installed).
>
What's the big gain? Where's the harm in just building all the sound
modules - you only load one in the end anyway, and the space taken by the
other modules is negligible with the disk sizes of today I'd say (ok,
there's some extra build time involved, but that shouldn't be a big deal
either). Or just use good old "make menuconfig" to only enable the module
you want. Besides, it's not as if you have to redo your kernel config from
scratch every time you want a new kernel. Make your favorite config once,
build and install that kernel and then when you want a newer kernel simply
either cd linux-<version>; zcat /proc/config.gz > .config ; make oldconfig
and then build the new kernel using your previous config.
--
Jesper Juhl
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