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KernelCompile.md

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Credits to Jeff Geerling

These instructions have been pulled from https://github.com/geerlingguy

Install dependencies

sudo apt install -y git bc bison flex libssl-dev make libncurses5-dev

Clone source

git clone --depth=1 https://github.com/raspberrypi/linux

Apply default configuration

cd linux export KERNEL=kernel7l # use kernel8 for 64-bit, or kernel7l for 32-bit make bcm2711_defconfig

Customize the .config further with menuconfig

make menuconfig Enable the following: Device Drivers: -> Serial ATA and Parallel ATA drivers (libata) -> AHCI SATA support -> Marvell SATA support

Alternatively add the following in .config manually: CONFIG_ATA=m CONFIG_ATA_VERBOSE_ERROR=y CONFIG_SATA_PMP=y CONFIG_SATA_AHCI=m CONFIG_SATA_MOBILE_LPM_POLICY=0 CONFIG_ATA_SFF=y CONFIG_ATA_BMDMA=y CONFIG_SATA_MV=m

nano .config (edit CONFIG_LOCALVERSION and add a suffix that helps you identify your build)

Build the kernel and copy everything into place

make -j4 zImage modules dtbs # 'Image' on 64-bit sudo make modules_install sudo cp arch/arm/boot/dts/.dtb /boot/ sudo cp arch/arm/boot/dts/overlays/.dtb* /boot/overlays/ sudo cp arch/arm/boot/dts/overlays/README /boot/overlays/ sudo cp arch/arm/boot/zImage /boot/$KERNEL.img