[yocto] kernel config fragments not applied

[Bruce Ashfield]

On 2017-01-10 4:13 PM, Schmitt, Richard wrote:
>
>
> -----Original Message-----
> From: Bruce Ashfield [mailto:bruce.ashfield at windriver.com]
> Sent: Tuesday, January 10, 2017 2:58 PM
> To: Schmitt, Richard <Richard.Schmitt at commscope.com>; yocto at yoctoproject.org
> Subject: Re: [yocto] kernel config fragments not applied
>
> On 2017-01-10 1:05 PM, Schmitt, Richard wrote:
>>> I am having a heck of a hard time getting a minor kernel config
>>> fragment applied.
>>>
>>>
>>>
>>> In order to minimize all variables, I am simply trying to build
>>> linux-yocto for a qemux86 MACHINE target.
>>>
>>>
>>>
>>
>> What release ? Everything is working here, but I can switch to whatever release you are using and run the test there (I'm using master).
>
> I'm using krogoth.  I'll try a build based on master and see if it's release specific.

Thanks. I'm also spinning up a krogoth build .. you never know if
something crept in. krogoth is before my audit code was visible, so
hints as to why it failed likely aren't visible.

Bruce

>
>> Bruce
>
>>> There had been some discussion on the mailing list previously that
>>> suggested making sure linux-yocto.inc was included within the recipes.
>>> The ones being used are standard poky recipes and they do include the
>>> linux-yocto.inc file.
>>>
>>> My configuration is very simple.  I have my own layer and linux-yocto
>>> bbappend:
>>>
>>> meta-mylayer/recipes-kernel/linux/linux-yocto_4.4.bbappend
>>>
>>> Whose contents are:
>>>
>> FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
>>>
>>> SRC_URI += " \
>>>         file://overlayfs.cfg \
>>>         "
>>>
>>> With the config fragment in:
>>>
>>> meta-mylayer/recipes-kernel/linux/linux-yocto/overlayfs.cfg
>>>
>>> whose contents is:
>>>
>>> CONFIG_OVERLAY_FS=y
>>>
>>> If I do a "bitbake linux-yocto" I would expect it to generate a config
>>> file that includes CONFIG_OVERLAY_FS=y and a kernel that includes this
>>> filesystem.  I don't.
>>>
>>> My layer is parsed correctly and the bbappend is found and parsed.  I
>>> know this because in the tmp directory:
>>>
>>> tmp/work/qemux86-poky-linux/linux-yocto/4.4.26+gitAUTOINC+3030330b06_c
>>> a6a08bd7f-r0/
>>>
>>> the file overlayfs.cfg exists.
>>>
>>> Searching the log files, the only one that references this file though
>>> is log.do_unpack.  I do not see any reference to it in
>>> log.do_kernel_configme or log.do_configure.    I'm not sure how kernel
>>> fragments are applied, but looking through the classes and recipes for
>>> linux-yocto in poky/meta, I do not see any code that would apply
>>> kernel fragments.  So I'm not sure if I'm missing some piece.
>>>
>>> Searching through the files in poky/meta, I find meta-config.sh only
>>> in recipes-core/uclibc and recipes-core/busybox.  That's why I think
>>> I'm missing something.
>>>
>>> I'm using the krogoth branch of poky.
>>>
>>> What am I missing?
>>>
>>> Thanks,
>>> Rich
>