How do I load a new kernel?

Hello, @DaneLLL ! I’ve followed these steps already:

mkdir ~/kernel
cd ~/kernel
export TEGRA_KERNEL_OUT=`pwd`

mkdir ~/modules
cd ~/modules
export TEGRA_MODULES_OUT=`pwd`

export TOP=/usr/src/linux-headers-5.10.120-tegra-ubuntu20.04_aarch64/kernel-5.10

cd ~
vim source_sync.sh
chmod +x source_sync.sh
./source_sync.sh -h
./source_sync.sh -k -t jetson_35.4.1
sudo cp -r ~/sources/kernel/* /usr/src/linux-headers-5.10.120-tegra-ubuntu20.04_aarch64

cd $TOP

make O=$TEGRA_KERNEL_OUT tegra_defconfig
make O=$TEGRA_KERNEL_OUT nconfig
make O=$TEGRA_KERNEL_OUT -j 8 Image
make O=$TEGRA_KERNEL_OUT -j 8 modules
make O=$TEGRA_KERNEL_OUT INSTALL_MOD_PATH=$TEGRA_MODULES_OUT modules_install

That finished successfully.

I need to… replace the kernel at this point? I don’t see anything in the documentation that you’ve linked that captures that step. I’ve never done anything like this, so if you have an ELI5, I’d really appreciate it.