Linux Kernel Module Cheat

Get the build config in guest:

or with our shortcut:

or to conveniently grep for a specific option case insensitively:

Source: rootfs_overlay/lkmc/conf.sh.

This is enabled by:

From host:

Just for fun https://stackoverflow.com/questions/14958192/how-to-get-the-config-from-a-linux-kernel-image/14958263#14958263:

although this can be useful when someone gives you a random image.