[MinnowBoard] Compiling kernel for MinnowBoardMax 3.16

[Ferchu R]

Darren:

The Debian scripts for building the kernel fail when there is a .config
file in the root of Linux. Besides Minnowmax-3.18.txt, do you have a list
of the changes that should be made to the standard .confing to get the same
results than the merge?. As I see, maybe it would be easer if I modify the
options manually by editconfigs, but its hard to browse to each config just
by the way they appear in the .config.

Thanks.

2015-05-20 18:19 GMT-05:00 Darren Hart <dvhart at linux.intel.com>:

>
>
> On 5/20/15 2:38 AM, Ferchu R wrote:
> > Hi:
> >
> > I have a couple of question regarding the steps enumerated in the wiki
> > for the custom kernel:
> > <http://www.elinux.org/Minnowboard:MinnowMaxLinuxKernel>
> >
> > Question 1. When merging Ubuntu standard .config with Minnowmax-3.18.txt
> > i am getting two kinds of feedback:
> >
> > * Several messages like this:
> >
> > Value of CONFIG_SERIAL_8250_NR_UARTS is redefined by fragment
> > Minnowmax-3.18.txt:
> > Previous value: CONFIG_SERIAL_8250_NR_UARTS=32
> > New value: CONFIG_SERIAL_8250_NR_UARTS=4
> >
> > * This kind of message just one time:
> >
> > scripts/kconfig/conf --alldefconfig Kconfig
> > ./.tmp.config.nxkCkYRh9b:3554:warning: override:
> > CPU_FREQ_DEFAULT_GOV_ONDEMAND changes choice                       state
> > #
> > # configuration written to .config
> > #
> > Value requested for CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE not in final
> > .config
> > Requested value:  CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y
> > Actual value:     # CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
> >
> > The first one, looks ok to me. But I was wondering if the second is ok.
> >
>
> These occur when the kernel config space changes from kernel version to
> kernel version, as well as when your starting .config has different
> values in it already. These are not problems that will prevent boot, but
> you may wish to fine tune the kernel to your needs once you get it going.
>
>
> > I wanted to ask too, if the build has to be done with:
> >
> > $ make -j4 && make -j4 modules
> >
> > I always use $fakeroot debian/rules editconfigs for editing the config
> > and then $fakeroot debian/rules binary-headers binary-generic to start
> > the building process. I am afraid that if I use $make && make modules,
> > some of the stuff I have done to the kernel previously could be omited.
> >
>
> You should be able to use your debian process instead of the make &&
> make modules without a problem, there is nothing special there.
>
>
> --
> Darren Hart
> Intel Open Source Technology Center
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> elinux-MinnowBoard at lists.elinux.org
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>
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