[yocto] Can not build SDK in rocko 'nothing provides /usr/bin/python...'

[Peter Bergin]

Hi,

I'm working in rocko branch and trying to build a SDK with kernel-devsrc
on a standard qemux86 machine. During task populate_sdk I get the
following error:

ERROR: core-image-base-1.0-r0 do_populate_sdk: Could not invoke dnf. Command '/work/yocto/rocko/qemux86/tmp/work/qemux86-poky-linux/core-image-base/1.0-r0/recipe-sysroot-native/usr/bin/dnf -y -c /work/yocto/rocko/qemux86/tmp/work/qemux86-poky-linux/core-image-base/1.0-r0/sdk/image/opt/poky/2.4.3/sysroots/i586-poky-linux/etc/dnf/dnf.conf --setopt=reposdir=/work/yocto/rocko/qemux86/tmp/work/qemux86-poky-linux/core-image-base/1.0-r0/sdk/image/opt/poky/2.4.3/sysroots/i586-poky-linux/etc/yum.repos.d --repofrompath=oe-repo,/work/yocto/rocko/qemux86/tmp/work/qemux86-poky-linux/core-image-base/1.0-r0/oe-sdk-repo --installroot=/work/yocto/rocko/qemux86/tmp/work/qemux86-poky-linux/core-image-base/1.0-r0/sdk/image/opt/poky/2.4.3/sysroots/i586-poky-linux --setopt=logdir=/work/yocto/rocko/qemux86/tmp/work/qemux86-poky-linux/core-image-base/1.0-r0/temp --nogpgcheck install packagegroup-core-standalone-sdk-target run-postinsts psplash packagegroup-base-extended packagegroup-core-boot linux-libc-headers-dev kernel-devsrc' returned 1:
Added oe-repo repo from /work/yocto/rocko/qemux86/tmp/work/qemux86-poky-linux/core-image-base/1.0-r0/oe-sdk-repo
Last metadata expiration check: 0:00:00 ago on Fri 02 Nov 2018 07:14:37 AM UTC.
Error:
 Problem: conflicting requests
  - nothing provides /usr/bin/python needed by kernel-devsrc-1.0-r0.qemux86

ERROR: core-image-base-1.0-r0 do_populate_sdk: Function failed: do_populate_sdk
ERROR: Logfile of failure stored in: /work/yocto/rocko/qemux86/tmp/work/qemux86-poky-linux/core-image-base/1.0-r0/temp/log.do_populate_sdk.25760
ERROR: Task (/work/yocto/rocko/layers/poky/meta/recipes-core/images/core-image-base.bb:do_populate_sdk) failed with exit code '1'

Any ideas about what the problem is and how to fix?

My addition to standard Yocto configuration is:

TOOLCHAIN_TARGET_TASK_append = " \
    kernel-devsrc \
    linux-libc-headers-dev \
"

I first build image with 'bitbake core-image-base' then I got the error
when building SDK with 'bitbake core-image-base -c populate_sdk'


Thanks,
/Peter

[Erik Botö]

Post by Peter Bergin
Hi,
ERROR: core-image-base-1.0-r0 do_populate_sdk: Could not invoke dnf. Command '/work/yocto/rocko/qemux86/tmp/work/qemux86-poky-linux/core-image-base/1.0-r0/recipe-sysroot-native/usr/bin/dnf -y -c /work/yocto/rocko/qemux86/tmp/work/qemux86-poky-linux/core-image-base/1.0-r0/sdk/image/opt/poky/2.4.3/sysroots/i586-poky-linux/etc/dnf/dnf.conf --setopt=reposdir=/work/yocto/rocko/qemux86/tmp/work/qemux86-poky-linux/core-image-base/1.0-r0/sdk/image/opt/poky/2.4.3/sysroots/i586-poky-linux/etc/yum.repos.d --repofrompath=oe-repo,/work/yocto/rocko/qemux86/tmp/work/qemux86-poky-linux/core-image-base/1.0-r0/oe-sdk-repo --installroot=/work/yocto/rocko/qemux86/tmp/work/qemux86-poky-linux/core-image-base/1.0-r0/sdk/image/opt/poky/2.4.3/sysroots/i586-poky-linux --setopt=logdir=/work/yocto/rocko/qemux86/tmp/work/qemux86-poky-linux/core-image-base/1.0-r0/temp --nogpgcheck install packagegroup-core-standalone-sdk-target run-postinsts psplash packagegroup-base-extended packagegroup-core-boot linu
Added oe-repo repo from /work/yocto/rocko/qemux86/tmp/work/qemux86-poky-linux/core-image-base/1.0-r0/oe-sdk-repo
Last metadata expiration check: 0:00:00 ago on Fri 02 Nov 2018 07:14:37 AM UTC.
Problem: conflicting requests
- nothing provides /usr/bin/python needed by kernel-devsrc-1.0-r0.qemux86
ERROR: core-image-base-1.0-r0 do_populate_sdk: Function failed: do_populate_sdk
ERROR: Logfile of failure stored in: /work/yocto/rocko/qemux86/tmp/work/qemux86-poky-linux/core-image-base/1.0-r0/temp/log.do_populate_sdk.25760
ERROR: Task (/work/yocto/rocko/layers/poky/meta/recipes-core/images/core-image-base.bb:do_populate_sdk) failed with exit code '1'
Any ideas about what the problem is and how to fix?

I had a quick look at how the kernel-devsrc recipe looks in master,
and there they have added python to RDEPENDS. Adding that should pull
python in to the SDK as well.

See http://cgit.openembedded.org/openembedded-core/tree/meta/recipes-kernel/linux/kernel-devsrc.bb?h=master#n234

Cheers,
Erik

Post by Peter Bergin
TOOLCHAIN_TARGET_TASK_append = " \
kernel-devsrc \
linux-libc-headers-dev \
"
I first build image with 'bitbake core-image-base' then I got the error when building SDK with 'bitbake core-image-base -c populate_sdk'
Thanks,
/Peter
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[Peter Bergin]

Post by Erik Botö
and there they have added python to RDEPENDS. Adding that should pull
python in to the SDK as well.

Thank you Erik!

Yes, adding python to RDEPENDS_kernel-devsrc solved the problem.

/Peter
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