# Problem with U-Boot patching - dunfell **URL:** \ **Category:** General Discussions\ **Tags:** yocto, u-boot, dunfell\ **Created:** [November 30, 2020, 8:56am UTC](https://hub.mender.io/t/problem-with-u-boot-patching-dunfell/2904 "2020-11-30T08:56:05Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![rmbedded](https://avatars.discourse-cdn.com/v4/letter/r/90ced4/32.png) [@rmbedded](https://hub.mender.io/u/rmbedded)\ **Post date:** [November 30, 2020, 8:56am UTC](https://hub.mender.io/t/problem-with-u-boot-patching-dunfell/2904/1 "2020-11-30T08:56:05Z")
Hello, I have encountered a problem during image build for Raspberry Pi 3 with using Mender meta layer in revision dunfell-v2020.10. The error output is following: ERROR: u-boot-1\_2020.01-r0 do\_patch: Command Error: ‘quilt --quiltrc /home/user//build-mini/tmp/raspberrypi/raspberrypi3-glibc/work/raspberrypi3-oe-linux-gnueabi/u-boot/1\_2020.01-r0/recipe-sysroot-native/etc/quiltrc push’ exited with 0 Output: Applying patch 0001-configs-rpi-enable-mender-requirements.patch patching file configs/rpi\_0\_w\_defconfig patching file configs/rpi\_2\_defconfig patching file configs/rpi\_3\_32b\_defconfig Hunk #2 FAILED at 44. 1 out of 2 hunks FAILED – rejects in file configs/rpi\_3\_32b\_defconfig patching file configs/rpi\_3\_b\_plus\_defconfig patching file configs/rpi\_3\_defconfig patching file configs/rpi\_4\_32b\_defconfig patching file configs/rpi\_4\_defconfig patching file configs/rpi\_arm64\_defconfig patching file configs/rpi\_defconfig patching file env/Kconfig patching file include/configs/rpi.h Patch 0001-configs-rpi-enable-mender-requirements.patch does not apply (enforce with -f) I found similar issue : [Raspberry Pi 3 build fails on warrior](https://hub.mender.io/t/raspberry-pi-3-build-fails-on-warrior/1140), but it looks like the problem still remaining for the dunfell branch. Does anyone was facing with that issue? ---
**Author:** ![mirzak](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/mirzak/32/2056_2.png) [@mirzak](https://hub.mender.io/u/mirzak)\ **Post date:** [November 30, 2020, 4:25pm UTC](https://hub.mender.io/t/problem-with-u-boot-patching-dunfell/2904/2 "2020-11-30T16:25:45Z")
I am not able to reproduce this. Do you have any additional layers in your environment that might modify the `rpi_3_32b_defconfig` file in U-Boot ? ---
**Author:** ![rmbedded](https://avatars.discourse-cdn.com/v4/letter/r/90ced4/32.png) [@rmbedded](https://hub.mender.io/u/rmbedded)\ **Post date:** [December 11, 2020, 9:11am UTC](https://hub.mender.io/t/problem-with-u-boot-patching-dunfell/2904/3 "2020-12-11T09:11:59Z")
Sorry for late response. You’re right - I omitted one layer in my buildchain that was modifying U-Boot stuff also. Thanks for hint.