Kernel/Rebuild

Common
Exit the kernel configuration and rebuild the kernel using the following command:

Do not forget to copy the newly compiled kernel image to the location. If applicable mount.

Using GRUB2
Update the boot loader configuration prior to rebooting the system. For instance, when using GRUB2, these steps can be done by running the following command:

In case of using the EFI Boot Stub instead of a bootloader, see Handbook:AMD64/Installation/Kernel.

Using EFI stub kernel
Users of EFI stub kernel follow the procedure in the Installation section.

Remember to reboot for the new kernel configuration to take effect: