How to re-configure kernel for imx devices

[vivekraj]

hi,

I'm trying to build the image with PCIe USB3 and usb wlan (rtl8188) support.

I followed the steps mentioned in the Task #5 - Kernel.

But after :

bitbake linux-imx -c menuconfig

if i try this line -- cp  tmp/work/imx6qsabresd-poky-linux-gnueabi/linux-imx/3.14.28-r0/git/.config ../sources/meta-fsl-arm/recipes-kernel/linux/linux-imx-3.14.28/mx6/defconfig

the error is -- cp: cannot stat ‘tmp/work/imx6qsabresd-poky-linux-gnueabi/linux-imx/3.14.28-r0/git/.config’: No such file or directory

please tell me after kernel config, where the latest .config or defconfig deployed. how to build linus kernel with changed defconfig????

[update]:

today i just tried with fsl-release-bsp packages kernel v3.10.17. i could see .config file here after menuconfig but not in fsl-community-bsp kernel v3.14.28. the build boots fine if i'm not doing menuconfig in both package, but if do the menuconfig and try to boot them it does not simply work... halts at starting kernel.....

[madisox · Accepted solution]

With the latest Yocto tools used with the 3.14.28 kernel, the kernel build happens outside the source tree, so instead of

    tmp/work/imx6qsabresd-poky-linux-gnueabi/linux-imx/3.14.28-r0/git/.config

you should find the generated config in

   tmp/work/imx6qsabresd-poky-linux-gnueabi/linux-imx/3.14.28-r0/build/.config

[taruntejkanakam]

Hi,

I am using 3.14.38-r0 for an iMX6UL and I am not able to find the .config anywhere in the build folder after "bitbake linux-imx -c menuconfig"

Has something else changed in the kernel build directory from 3.14.28-r0 to 3.14.38-r0?

Could please help me get the location where the .config was supposed to be saved?

Thanks,

Tarun

[vivekraj]

Thank you very much madisox, i found it..

[gusarambula]

Thanks for the help, Masidox! I'm sure it will help other community users as well!

Vivek, would you please confirm if this answered your quesion?