Great ! it worked, ( but in fact i thought that he old config is saved in old.config and that we don't require to save the configuration to .config )!!
thanks again :)

Regards,

Mohtadi Barhoumi

> Date: Wed, 2 May 2012 13:52:24 +0200
> From: post@lespocky.de
> To: ptxdist@pengutronix.de
> Subject: Re: [ptxdist] Loading kernel configuration from an existing platform ( where is the file ??? :D )
> 
> Hei hei, 
> 
> Am 2012-05-02 09:53, schrieb barhoumi mohtadi:
> > I've tried to load that file , i can see that options are checked, i
> > save my configuration, but when running kernelconfig another time,
> > it's like i've done nothing!! the confiugration has not been loaded
> > properly i guess...
> 
> This sounds like a problem one has with upgrading kernels too. In our
> BSP there's this:
> 
>   PTXCONF_KERNEL_CONFIG="kernelconfig-${PTXCONF_KERNEL_VERSION}"
> 
> So there's one config for each kernel version. When upgrading I do the
> following:
> 
>   * `ptxdist kernelconfig`
>   * "Load an Alternate Configuration File" – Here load your old config,
> the in background called 'make menuconfig' for the kernelconfig handles
> new options.
>   * Do your settings or check your old ones.
>   * "Save an Alternate Configuration File" – Enter '.config' here.
> 
> ptxdist handles copying .config to
> kernelconfig-${PTXCONF_KERNEL_VERSION} in both directions, at least this
> is what I guessed from the behaviour.
> 
> So you do not only need to load your old config but save it to .config
> (without path before). You can now call `ptxdist kernelconfig` again and
> your config should still be there.
> 
> HTH & Greets
> Alex
> 
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