[yocto] Image introspection

[Alexander Kanavin]

DISTRO_FEATURES_DEFAULT is set using ?= :

DISTRO_FEATURES_DEFAULT ?= "acl alsa argp bluetooth ext2 ipv4 ipv6
irda largefile pcmcia usbgadget usbhost wifi xattr nfs zeroconf pci 3g
nfc x11"

So you can override it by setting it using =, which is also a chance
to trim other unnecessary features.

Alex

On Fri, 29 Mar 2019 at 10:50, Dimitris Tassopoulos <dimtass at gmail.com> wrote:
>
> Hi Alexander,
>
> in this case the 3g is added by default from the poky distro in
> the DISTRO_FEATURES_DEFAULT var in:
> meta/conf/distro/include/default-distrovars.inc
>
> And because the poky distro is the base distro for the image
> this is inherited. Therefore it needs to be removed with the
> DISTRO_FEATURES_remove unless there is another way,
> which I'm not aware to easily remove/adjust without having
> to create a new distro.
>
> Regards,
> Dimitris
>
> On Fri, Mar 29, 2019 at 10:38 AM Alexander Kanavin <alex.kanavin at gmail.com> wrote:
>>
>> You can do that using
>>
>> bitbake -e <image> and looking for how DISTRO_FEATURES is formed in
>> the output of the command.
>>
>> Alex
>>
>> On Fri, 29 Mar 2019 at 10:37, Alexander Kanavin <alex.kanavin at gmail.com> wrote:
>> >
>> > On Fri, 29 Mar 2019 at 09:51, Dimitris Tassopoulos <dimtass at gmail.com> wrote:
>> >
>> > > To do that, add this to your build/conf/local.conf file
>> > >
>> > >> DISTRO_FEATURES_remove = " 3g"
>> >
>> > This works around the issue after the fact. It's better to track down
>> > where 3g is added in the first place, and adjust that.
>> >
>> > Alex