WP76xx kernel image update

IoT Modules WP Series
1

Hi Jyijyi,

I have compiled the Linux kernel by following command:

  1. bitbake linux-quic -c menuconfig -f
  2. bitbake linux-quic -c compile -f

How can i update kernel image in into target board?. Should i run “bitbake mdm9x28-image-minimal” and create “yocto_wp76xx.4k.cwe” image and update into target?

Thanks,
Raghavan K.

2

normally i will type “make” to update the whole image "“yocto_wp76xx.4k.cwe”

3

Hi Jyijyi,
I am getting following error. Where should i run make command. After yocto source code download, i have compiled the yocto by make command first time. Second time make command is not working. Only bitbake option is there.

raghavan@raghavan-HP-350-G2:~/wp76xx_r16/yocto$ make
Makefile:8: *** “Detected Makefile being re-invoked from within bitbake environment!”. Stop.
raghavan@raghavan-HP-350-G2:~/wp76xx_r16/yocto$ ls
build_bin kernel lk Makefile meta-gplv2 meta-openembedded meta-swi meta-swi-extras poky
raghavan@raghavan-HP-350-G2:~/wp76xx_r16/yocto$

Thanks,
Raghavan.

4

then please do not do this " bitbake linux-quic -c compile -f" after first “make”

5

Hi Jyijyi,
The top-level make command will run for 3 hours.
We are in project development phase. I need to change kernel source code often, recompile it and load into target board and test it.

How can do this kernel modification and testing?.

Thanks,
Raghavan.

6

the second time of “make” is very fast
I can finish this within 5-10 minutes

7

Hi Jyijyi,
I will try second time make before running any bitbake commands.
What is the recommended ubuntu version for Release 16 compilation?. I am using Ubuntu 14.04. I am getting following Warning messages during kernel compilation:
WARNING: Host distribution “ubuntu-14.04” has not been validated with this version of the build system; you may possibly experience unexpected failures. It is recommended that you use a tested distribution.

Thanks,
Raghavan.

8

I used Ubuntu 14 also.