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home-assistant-yellow/build-kernel.sh

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#!/bin/sh
# vim: set sw=4 ts=4 sts=4 et :
set -e
. ./config
emerge -vnj ${kernel_pkg}
export ARCH=arm64 CROSS_COMPILE=${target}-
mkdir -p linux
cd linux
/usr/src/linux/scripts/kconfig/merge_config.sh -m \
/usr/src/linux/arch/*/configs/${kernel_defconfig}_defconfig \
../linux.config
make -C /usr/src/linux O=${PWD} olddefconfig
make -j$(nproc)
kver=$(make -s kernelversion)
make modules_install INSTALL_MOD_PATH=/mnt/gentoo/usr
cd -
printf 'Installing Kernel %s ...\n' "${kver}"
mkdir -p /mnt/gentoo/boot
cp -au linux/arch/arm64/boot/Image.gz /mnt/gentoo/boot/vmlinuz-${kver}
cp -au linux/.config /mnt/gentoo/boot/config-${kver}
cp -au linux/System.map /mnt/gentoo/boot/System.map-${kver}
printf 'Installing device tree binaries ...\n'
mkdir -p output/efi-part/overlays
cp -au linux/arch/arm64/boot/dts/${device_tree} output/efi-part/
cp -au \
linux/arch/arm64/boot/dts/overlays/*.dtb \
linux/arch/arm64/boot/dts/overlays/*.dtbo \
output/efi-part/overlays/