Raspbian: Enable/disable OverlayFS from terminal?

Question

I know that I can enable/disable OverlayFS from the raspi-config, but do I do this from the terminal? Via a bash script for example.

Answer 1

sudo raspi-config nonint enable_overlayfs or sudo raspi-config nonint disable_overlayfs

Then reboot.

Answer 2

Just study raspi-config which is just a simple (if rather long) shell script and extract the bits you need.

It is actually possible to call the functions in raspi-config.

enable_overlayfs() disable_overlayfs() should work (but I have not tried).