[LAD] exciting news about the realtime kernel tree

cal cal at graggrag.com
Thu Feb 26 16:57:59 UTC 2009


Luis Garrido wrote:
>> Is there a neat around trick that takes something like lsmod (from a
>> working machine) as input and produces a config based on that?
>>
> 
> There is a procedure outlined in chapter 7 of LKN, but I am not sure
> about how scriptable it is.
> 
> http://www.kernel.org/pub/linux/kernel/people/gregkh/lkn/lkn_pdf/ch07.pdf
> 
> It would certainly be a neat thing.

First, identify the kernel .config to be migrated to the new kernel, and get
it into the new kernel source directory as '.config'.
Eg ...
  zcat /proc/config.gz > .config  or
  cp /boot/config-2.6.28-xyz .config  or
  cp ~/my_brave_rt/2.6.28-rt11.config.good .config

Run 'make oldconfig'. That will stop when it encounters a new option that needs
an answer, so it's scriptable but not entirely automatic.

Then build && install new kernel.

cheers, Cal



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