# genkernel > Gentoo Linux utility to compile and install kernels. > More information: . - Automatically compile and install a generic kernel: `sudo genkernel all` - Build and install the bzImage|initramfs|kernel|ramdisk only: `sudo genkernel {{bzImage|initramfs|kernel|ramdisk}}` - Apply changes to the kernel configuration before compiling and installing: `sudo genkernel --menuconfig all` - Generate a kernel with a custom name: `sudo genkernel --kernname={{custom_name}} all` - Use a kernel source outside the default directory `/usr/src/linux`: `sudo genkernel --kerneldir={{path/to/directory}} all`