some of this has come up before, but i wanted to make dead
sure i got it right.

  occasionally, someone asks "where is the config file for
the currently running kernel?", and the answer is that a
number of config files reside in the kernel directory
/usr/src/linux-???/configs.  you just have to choose the
one that corresponds to how your machine was installed.

  but there are more config files than prebuilt binary
kernel RPMs, which leads one to ask:

   1) for the config files that appear to match a binary
   kernel RPM, is this *exactly* the config file that
   was used to build the corresponding RPM?

   2) what are the other config files for?  just suggestions
   or starting points if someone wants help getting going?

  i've also noticed the config file .../arch/i386/defconfig
in the kernel source directory.  what does this represent?
it's part of the actual kernel-source RPM, so i would guess
it's the config file to be used for a kernel configuration
if there is no .config file.  is that correct?

  and finally, for those who hadn't noticed, there is a
kernel config option to actually build the config file 
into the new kernel itself.  that config file can (allegedly)
be extracted with the script .../scripts/extract-ikconfig,
again in the kernel source directory.  (i say "allegedly"
since i bugzilla'ed it once for not working, and i'm just
about to check if it's better).

rday



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