[ptxdist] Loading kernel configuration from an existing platform ( where is the file ??? :D )

[ptxdist] Loading kernel configuration from an existing platform ( where is the file ??? :D )

[barhoumi mohtadi]

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hi everyone ,

 i have to reconstruct a kernel configuration of a 
new platform from an existing one after i was forced to re-install my ubuntu, i want to load the kernelconfig file of the older system ( i have saved my /home ( and of course my BSPFolder) as well as my /usr,
 but i didn't found the kernel config anywhere.
 there is in 
/BSPFOlder_Of_What_I_Had/configs/my_architecture two kernel (2.6.37 and 3.0) files that does not 
correspond to the configurations of the older system and that are exactly the same as the files in /mynewBSPFolder/configs/my_architecture.

Anyone could help find out where the kernel file is stored?

Thanks

Mohtadi BARHOUMIIngénieur R&D en infotmatique  au CReSTIC
Université de Reims Champagne-Ardennes (URCA)Campus Moulin de la Housse, Bâtiment 12, Bureau 41Mobile : +33(0)6 18 98 18 84E-mail : mohtadi.barhoumi@univ-reims.fr / mohtadi_barhoumi@hotmail.fr
 		 	   		  

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Re: [ptxdist] Loading kernel configuration from an existing platform ( where is the file ??? :D )

[Dave Festing]

barhoumi mohtadi <mohtadi_barhoumi@...> writes:

> 
> 
> hi everyone , i have to reconstruct a kernel configuration of a 
> new platform from an existing one after i was forced to re-install my ubuntu,
i want to load the kernelconfig file of the older system ( i have saved my /home
( and of course my BSPFolder) as well as my /usr,
>  but i didn't found the kernel config anywhere. there is in 
> /BSPFOlder_Of_What_I_Had/configs/my_architecture two kernel (2.6.37 and 3.0)
files that does not 
> correspond to the configurations of the older system and that are exactly the
same as the files in /mynewBSPFolder/configs/my_architecture.Anyone could help
find out where the kernel file is stored?Thanks
> Mohtadi BARHOUMI
> Ingénieur R&D en infotmatique  au CReSTIC
> 
> Université de Reims Champagne-Ardennes (URCA)
> Campus Moulin de la Housse, Bâtiment 12, Bureau 41
> Mobile : +33(0)6 18 98 18 84
> E-mail : mohtadi.barhoumi <at> univ-reims.fr /
mohtadi_barhoumi@hotmail.fr
> 
> 
Just some suggestions:  did you look in
/platform-mini2440/build-target/linux-version-you-want/.config (a hidden file)
and /configs/platform-friendlyarm-mini240/kernelconfig-used-you-want.

My current understanding is that both these files have the same content and when
you run ptxdist kernelconfig it will first look at the 2nd file I mentioned.



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Re: [ptxdist] Loading kernel configuration from an existing platform ( where is the file ??? :D )

[barhoumi mohtadi]

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Hi,

Thanks for your response : 
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...

:\

> To: ptxdist@pengutronix.de
> From: dave_festing@hotmail.com
> Date: Sun, 29 Apr 2012 20:27:10 +0000
> Subject: Re: [ptxdist] Loading kernel configuration from an existing	platform ( where is the file ??? :D )
> 
> barhoumi mohtadi <mohtadi_barhoumi@...> writes:
> 
> > 
> > 
> > hi everyone , i have to reconstruct a kernel configuration of a 
> > new platform from an existing one after i was forced to re-install my ubuntu,
> i want to load the kernelconfig file of the older system ( i have saved my /home
> ( and of course my BSPFolder) as well as my /usr,
> >  but i didn't found the kernel config anywhere. there is in 
> > /BSPFOlder_Of_What_I_Had/configs/my_architecture two kernel (2.6.37 and 3.0)
> files that does not 
> > correspond to the configurations of the older system and that are exactly the
> same as the files in /mynewBSPFolder/configs/my_architecture.Anyone could help
> find out where the kernel file is stored?Thanks
> > Mohtadi BARHOUMI
> > Ingénieur R&D en infotmatique  au CReSTIC
> > 
> > Université de Reims Champagne-Ardennes (URCA)
> > Campus Moulin de la Housse, Bâtiment 12, Bureau 41
> > Mobile : +33(0)6 18 98 18 84
> > E-mail : mohtadi.barhoumi <at> univ-reims.fr /
> mohtadi_barhoumi@hotmail.fr
> > 
> > 
> Just some suggestions:  did you look in
> /platform-mini2440/build-target/linux-version-you-want/.config (a hidden file)
> and /configs/platform-friendlyarm-mini240/kernelconfig-used-you-want.
> 
> My current understanding is that both these files have the same content and when
> you run ptxdist kernelconfig it will first look at the 2nd file I mentioned.
> 
> 
> 
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> ptxdist mailing list
> ptxdist@pengutronix.de
 		 	   		  

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Re: [ptxdist] Loading kernel configuration from an existing platform ( where is the file ??? :D )

[Alexander Dahl]

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

-- 
»With the first link, the chain is forged. The first speech censured,
the first thought forbidden, the first freedom denied, chains us all
irrevocably.« (Jean-Luc Picard, quoting Judge Aaron Satie)
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Re: [ptxdist] Loading kernel configuration from an existing platform ( where is the file ??? :D )

[barhoumi mohtadi]

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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
> 
> -- 
> »With the first link, the chain is forged. The first speech censured,
> the first thought forbidden, the first freedom denied, chains us all
> irrevocably.« (Jean-Luc Picard, quoting Judge Aaron Satie)
> *** GnuPG-FP: 02C8 A590 7FE5 CA5F 3601  D1D5 8FBA 7744 CC87 10D0 ***
> 
> -- 
> ptxdist mailing list
> ptxdist@pengutronix.de
 		 	   		  

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