dotfiles/termscripts/kernel-update.sh

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#!/usr/bin/env sh
update_kernel () {
emerge -v --update --deep --with-bdeps=y --newuse \
sys-kernel/gentoo-sources &&
next_number="$(($(eselect kernel list | wc -l) - 1))" &&
echo "New kernel: $(eselect kernel list | tail -n 1)" &&
eselect kernel set $next_number &&
cp $old_config /usr/src/linux/.config &&
cd /usr/src/linux &&
make syncconfig &&
make modules_prepare &&
emerge -v @module-rebuild &&
make -j2 &&
make modules_install &&
make install &&
grub-mkconfig -o /grub/libreboot_grub.cfg
}
old_config="$KERNEL_CONFIGS/kernel-config-`uname -r`" &&
cp /usr/src/linux/.config $old_config &&
export old_config
export -f update_kernel
su -c update_kernel