Kernel build:
This is to add devtmpfs config needed in bzImage for systemd.
Use the same linux-4.8.17-patched.txz as found in Core.

export CFLAGS="-mtune=generic -O2 -pipe"
export CXXFLAGS="-mtune=generic -O2 -pipe"
tar xvf linux-4.8.17-patched.txz
cd linux-4.8.17
cp config-4.8.17-tinycore-mountdevtmpfs .config
make oldconfig
make prepare
make modules_prepare
make bzImage
make modules
make INSTALL_MOD_PATH=/desired/install/path modules_install