From: dimke.fax@uni.de   
      
   Am Wed, 28 May 2014 09:06:54 +0000 schrieb "Markus R." Keßler:   
      
   > Am Sat, 24 May 2014 15:35:57 +0000 schrieb Wes Newell:   
   >   
   >> On Sat, 24 May 2014 14:17:14 +0000, "Markus R." Keßler wrote:   
   >>   
   >>> Is this a known issue in open mandriva distributions, also? Or, can   
   >>> this file be downloaded somewhere?   
   >>   
   >> The file is created when you run make config.   
   >   
   > Hi, thanks,   
   >   
   > building this file from scratch with "make menuconfig" is what I tried   
   > when building kernel 3.14.4. It works, but regarding those thousands of   
   > options, it is very likely to overlook some of them.   
   >   
   > I think, it is a more secure way to take a former .config file as a   
   > template and only set / unset the new, additional options.   
   >   
   > So, as a first step, I'd like to optimize an older kernel 2.6.39.4,   
   > which is already in use, but I'm not sure, how to test several   
   > modifications. I don't want to risk to lose the existing version by   
   > overwriting -- it works, but only does not support webcams up to now.   
   >   
   > Can the directory in /usr/src be copied from linux-2.6.39.4 to, let's   
   > say linux-2.6.39.4-001 to get a completely different set of modules and   
   > kernel / initrd files, or does "make" take the version string out of the   
   > sources somewhere and overwrites the existing ones?   
   >   
   > Thanks in advance,   
   > best regards,   
   >   
   > Markus   
      
   Hi there,   
      
   got it to work now. The trick ist just the following:   
      
   Many device drivers needed for V4L version 1 and 2 are deactivated by   
   default. So, you have to jump into every subtree below "multimedia" and   
   check to include it.   
      
   Testing the same kernel with different options without overwriting the   
   existing one can also be done easily by editing the Makefile in the   
   relevant /usr/src/new_kernel directory and / or renaming the .config file   
   in the same directory and loading this one from "make menuconfig".   
      
   So, now I have the former 2.6.39.4 kernel, as well as 2.6.39.4a001, which   
   just finished compiling.   
      
   Maybe this can help someone when testing.   
      
   Best regards,   
      
   Markus   
      
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