[gentoo-kernel] How works Genkernel's non-interactive 'make oldconfig'

[gentoo-kernel] How works Genkernel's non-interactive 'make oldconfig'

[Arne Stäcker]

Hi,
I don't know if this the right mailing list, but I give it a try.

I'm writing a software to manage the upgrading, rebuild, uninstallation of the 
linux kernel.

Now, what I need is a non-interactive 'make oldconfig' like genkernel does it. 
I looked at the code, but couldn't find the right line. Can anyone tell me at 
which files and lines I have to look for this feature. Thanks.

regards
 Arne
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Re: [gentoo-kernel] How works Genkernel's non-interactive 'make oldconfig'

[Daniel Gryniewicz]

On Fri, 2007-06-15 at 15:35 +0200, Arne Stäcker wrote:
> Hi,
> I don't know if this the right mailing list, but I give it a try.
> 
> I'm writing a software to manage the upgrading, rebuild, uninstallation of the 
> linux kernel.
> 
> Now, what I need is a non-interactive 'make oldconfig' like genkernel does it. 
> I looked at the code, but couldn't find the right line. Can anyone tell me at 
> which files and lines I have to look for this feature. Thanks.
> 
> regards
>  Arne

I think you want make silentoldconfig

Daniel

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Re: [gentoo-kernel] How works Genkernel's non-interactive 'make oldconfig'

[Arne Stäcker]

Am Freitag, 15. Juni 2007 schrieb Daniel Gryniewicz:
> I think you want make silentoldconfig
>
> Daniel
No, 'make silentoldconfig' just suppresses the already answered (by the old 
config) options. It still prompt for new options.

Arne

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Re: [gentoo-kernel] How works Genkernel's non-interactive 'make oldconfig'

[Sam Ravnborg]

On Fri, Jun 15, 2007 at 03:35:31PM +0200, Arne Stäcker wrote:
> Hi,
> I don't know if this the right mailing list, but I give it a try.
> 
> I'm writing a software to manage the upgrading, rebuild, uninstallation of the 
> linux kernel.
> 
> Now, what I need is a non-interactive 'make oldconfig' like genkernel does it. 
> I looked at the code, but couldn't find the right line. Can anyone tell me at 
> which files and lines I have to look for this feature. Thanks.

try:
echo y | make oldconfig

	Sam
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Re: [gentoo-kernel] How works Genkernel's non-interactive 'make oldconfig'

[Greg KH]

On Fri, Jun 15, 2007 at 09:35:30PM +0200, Sam Ravnborg wrote:
> On Fri, Jun 15, 2007 at 03:35:31PM +0200, Arne St?cker wrote:
> > Hi,
> > I don't know if this the right mailing list, but I give it a try.
> > 
> > I'm writing a software to manage the upgrading, rebuild, uninstallation of the 
> > linux kernel.
> > 
> > Now, what I need is a non-interactive 'make oldconfig' like genkernel does it. 
> > I looked at the code, but couldn't find the right line. Can anyone tell me at 
> > which files and lines I have to look for this feature. Thanks.
> 
> try:
> echo y | make oldconfig

That's not really safe.  You want to use the defaults, which is what I
think 'silentoldconfig' does.  You really don't want to enable an option
like "Add self-destruct mode" to the kernel if it is newly present :)

thanks,

greg k-h
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Re: [gentoo-kernel] How works Genkernel's non-interactive 'make oldconfig'

[Arne Stäcker]

Am Freitag, 15. Juni 2007 schrieb Greg KH:
> That's not really safe.  You want to use the defaults, which is what I
> think 'silentoldconfig' does.  You really don't want to enable an option
> like "Add self-destruct mode" to the kernel if it is newly present :)
>
> thanks,
>
> greg k-h
Good point. I will then use "echo n | make oldconfig" by default.

 Arne

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Re: [gentoo-kernel] How works Genkernel's non-interactive 'make oldconfig'

[Ryan Sims]

On 6/15/07, Arne Stäcker <arnestaecker@web.de> wrote:
> Am Freitag, 15. Juni 2007 schrieb Greg KH:
> > That's not really safe.  You want to use the defaults, which is what I
> > think 'silentoldconfig' does.  You really don't want to enable an option
> > like "Add self-destruct mode" to the kernel if it is newly present :)
> >
> > thanks,
> >
> > greg k-h
> Good point. I will then use "echo n | make oldconfig" by default.

I'm not sure that really removes the danger.  What if they split out a
driver you need into some other config option?  If there's a way to
echo a newline to all the questions, that would at least accept the
defaults.

Pardon me for being reactionary, but does "non-interactive kernel
configuration" give anyone else the cold sweats?

-- 
Ryan W Sims
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Re: [gentoo-kernel] How works Genkernel's non-interactive 'make oldconfig'

[Brian.D.Botton]

"Ryan Sims" <rwsims@gmail.com> wrote on 06/15/2007 03:39:38 PM:

> On 6/15/07, Arne Stäcker <arnestaecker@web.de> wrote:
> > Am Freitag, 15. Juni 2007 schrieb Greg KH:
> > > That's not really safe.  You want to use the defaults, which is what
I
> > > think 'silentoldconfig' does.  You really don't want to enable an
option
> > > like "Add self-destruct mode" to the kernel if it is newly present :)
> > >
> > > thanks,
> > >
> > > greg k-h
> > Good point. I will then use "echo n | make oldconfig" by default.
>
> I'm not sure that really removes the danger.  What if they split out a
> driver you need into some other config option?  If there's a way to
> echo a newline to all the questions, that would at least accept the
> defaults.
>
> Pardon me for being reactionary, but does "non-interactive kernel
> configuration" give anyone else the cold sweats?
>

  I got bit by this exact issue. Don't do it. Run it by hand and
figure out what you need to do. It isn't that hard and you should
keep up with the changes anyway.

Brian

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Re: [gentoo-kernel] How works Genkernel's non-interactive 'make oldconfig'

[Greg KH]

On Fri, Jun 15, 2007 at 11:25:17PM +0200, Arne St?cker wrote:
> Am Freitag, 15. Juni 2007 schrieb Greg KH:
> > That's not really safe.  You want to use the defaults, which is what I
> > think 'silentoldconfig' does.  You really don't want to enable an option
> > like "Add self-destruct mode" to the kernel if it is newly present :)
> >
> > thanks,
> >
> > greg k-h
> Good point. I will then use "echo n | make oldconfig" by default.

Are you sure you want that too?  What if there's the new "Make
your box run twice as fast" option?  You need to pick the default option
value, which I'm pretty sure that 'silentoldconfig' does.

So please use that one to get things "correct".

thanks,

greg k-h
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Re: [gentoo-kernel] How works Genkernel's non-interactive 'make oldconfig'

[Arne Stäcker]

Am Freitag, 15. Juni 2007 schrieb Greg KH:
> Are you sure you want that too?  What if there's the new "Make
> your box run twice as fast" option?  You need to pick the default option
> value, which I'm pretty sure that 'silentoldconfig' does.
>
> So please use that one to get things "correct".
>
> thanks,
>
> greg k-h
Ok, then 'echo | make oldconfig'.
And 'make silentoldconfig' it is still interactive. It doesn't show the old 
options, but prompts for the ehe new ones.

 Arne
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Re: [gentoo-kernel] How works Genkernel's non-interactive 'make oldconfig'

[Mike Doty]

Greg KH wrote:
> On Fri, Jun 15, 2007 at 09:35:30PM +0200, Sam Ravnborg wrote:
>> On Fri, Jun 15, 2007 at 03:35:31PM +0200, Arne St?cker wrote:
>>> Hi,
>>> I don't know if this the right mailing list, but I give it a try.
>>>
>>> I'm writing a software to manage the upgrading, rebuild, uninstallation of the 
>>> linux kernel.
>>>
>>> Now, what I need is a non-interactive 'make oldconfig' like genkernel does it. 
>>> I looked at the code, but couldn't find the right line. Can anyone tell me at 
>>> which files and lines I have to look for this feature. Thanks.
>> try:
>> echo y | make oldconfig
> 
> That's not really safe.  You want to use the defaults, which is what I
> think 'silentoldconfig' does.  You really don't want to enable an option
> like "Add self-destruct mode" to the kernel if it is newly present :)
Where's the fun in that!!

--taco
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Re: [gentoo-kernel] How works Genkernel's non-interactive 'make oldconfig'

[Arne Stäcker]

Am Freitag, 15. Juni 2007 schrieb Sam Ravnborg:
> try:
> echo y | make oldconfig
>
> 	Sam
Great. Works like a charm.
Thanks.

 Arne


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Re: [gentoo-kernel] How works Genkernel's non-interactive 'make oldconfig'

[Master Control Program]

"Ryan Sims" <rwsims@gmail.com> wrote on 06/15/2007 03:39:38 PM:

> On 6/15/07, Arne St=E4cker <arnestaecker@web.de> wrote:
> > Am Freitag, 15. Juni 2007 schrieb Greg KH:
> > > That's not really safe.  You want to use the defaults, which is w=
hat
I
> > > think 'silentoldconfig' does.  You really don't want to enable an=

option
> > > like "Add self-destruct mode" to the kernel if it is newly presen=
t :)
> > >
> > > thanks,
> > >
> > > greg k-h
> > Good point. I will then use "echo n | make oldconfig" by default.
>
> I'm not sure that really removes the danger.  What if they split out =
a
> driver you need into some other config option?  If there's a way to
> echo a newline to all the questions, that would at least accept the
> defaults.
>
> Pardon me for being reactionary, but does "non-interactive kernel
> configuration" give anyone else the cold sweats?
>

Yep, shot myself in the foot when SATA options appeared in the kernel 
and there was no boot device.






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