# Rebuilding patched kernel
**URL:** https://forum.legato.io/t/rebuilding-patched-kernel/2878
**Category:** Uncategorized
**Created:** [December 17, 2017, 9:40pm UTC](https://forum.legato.io/t/rebuilding-patched-kernel/2878 "2017-12-17T21:40:34Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@outbackdingo](https://forum.legato.io/u/outbackdingo)
#### Post date: [December 17, 2017, 9:40pm UTC](https://forum.legato.io/t/rebuilding-patched-kernel/2878/1 "2017-12-17T21:40:34Z")
Ive gotten the Legato-Dist-Source-mdm9x15-SWI9X15Y\_07.12.09.00.tar.bz2 and extracted it…
trying to remember this properly, I need to patch the kernel and run make menuconfig
so i would patch the sources in yocto/kernel
and run
cd …/build\_bin/
bitbake linux-yocto -c kernel\_configme -f
bitbake linux-yocto -c menuconfig
which brings up the terminal with the ncurses menuconfig
however i dont see the options added from the patched kernel that i need…
refresh my memory… what did i miss?
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### Author:  [@JordanZhao](https://forum.legato.io/u/JordanZhao)
#### Post date: [December 18, 2017, 8:42am UTC](https://forum.legato.io/t/rebuilding-patched-kernel/2878/2 "2017-12-18T08:42:25Z")
Can you be more specific about what you have done on kernel source code?
Did you add any bbappend file?
You may refer to [Yocto Project Linux Kernel Development Manual](http://www.yoctoproject.org/docs/1.7.2/kernel-dev/kernel-dev.html) website for how to add patches.
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### Author:  [@outbackdingo](https://forum.legato.io/u/outbackdingo)
#### Post date: [December 18, 2017, 11:34am UTC](https://forum.legato.io/t/rebuilding-patched-kernel/2878/3 "2017-12-18T11:34:12Z")
right, just applying two patches and updating the kernel config variables and recompile. Yupp the doc will help refresh my memory on custom kernel patches, i think the mistake was applying the patches in yocto/kernel and not in the proper location of the build tree. ill work to bitbake config the patches to be added
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### Author:  [@outbackdingo](https://forum.legato.io/u/outbackdingo)
#### Post date: [December 18, 2017, 11:58am UTC](https://forum.legato.io/t/rebuilding-patched-kernel/2878/4 "2017-12-18T11:58:19Z")
more specifically… right now the mangOH\_green is running
Linux swi-mdm9x15 3.14.29ltsi-961ca71325\_ab5094eade #2 PREEMPT Thu Apr 27 02:17:10 PDT 2017 armv7l GNU/Linux
so im simply trying to locate the sources, add 2 patches and some configuration variables to the kernel .config and rebuild the flashable image… basically duplicating the sierra image for a green\_wp85
with my patches applied. so maybe i should be asking how to do this, and get the proper input.
Ive worked with yocto before and know it well…