[yocto] Magic kernel config option.
Bruce Ashfield
bruce.ashfield at windriver.com
Wed Jan 2 10:06:36 PST 2013
On 12-12-24 02:59 PM, Brian Smucker wrote:
> Hi,
>
Catching up on email from the holidays. Did you ever get an answer
to this ?
> I'm a yocto mostly-newbie, trying to find my way. I have a custom layer
> that I am using to build a kernel. The layer right now consists of a few
> kernel patches and a defconfig and is based on the standard kernel
> otherwise.
>
> When I do a diff on my defconfig and the bitbake generated .config, they
> are quite similar, but the CONFIG_UNION_FS=y line magically shows up.
> I'm wondering where it comes from and how to disable it.
CONFIG_UNION_FS is being enabled by the standard kernel (and all
kernels that inherit it). Since you are based on that kernel, you
get the option enabled.
>
> I can do a bitbake -c menuconfig virtual/kernel and eliminate that
> option giving me the kernel I want, but those changes are gone after a
> bitbake -c cleansstate ...
Have you tried putting
# CONFIG_UNION_FS is not set
in your defconfig ? That should disable it.
Bruce
>
> Could someone give me some help about where to go from here?
>
> Thanks,
> Brian
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