Raspberry Pi: Building the Kernel¶

Todo jjj¶

https://www.raspberrypi.org/documentation/linux/kernel/building.md

(Story is not quite up to date)

Toolchain (on Fedora)

# dnf install binutils-arm-linux-gnu gcc-arm-linux-gnu

Kernel source

On the Raspi …¶

$ uname -r
5.4.83-v7+

$ git clone https://github.com/raspberrypi/linux
$ cd linux/
$ git checkout --track remotes/origin/rpi-5.4.y

Fix EXTRAVERSION

Toplevel Makefile¶

VERSION = 5
PATCHLEVEL = 4
SUBLEVEL = 83
EXTRAVERSION = -v7

Build

Use config from running Pi kernel

On the Pi …¶

# modprobe configs
# ls -l /proc/config.gz

Copy and unzip that into kernel root, as .config

On host …¶

$ make ARCH=arm CROSS_COMPILE=arm-linux-gnu- oldconfig

Build

On host …¶

$ make ARCH=arm CROSS_COMPILE=arm-linux-gnu- zImage modules dtbs