Now for an explanation of our changes. This lilo.conf file was set up to allow you to boot two different kernels. It'll allow you to boot your original kernel, located at /vmlinuz. It'll also allow you to boot your new kernel, located at /vmlinuz2. By default, it will try to boot your new kernel (because the image/label lines for the new kernel appear first in the configuration file).

If, for some reason, you need to boot the old kernel, simply reboot your computer and hold down the shift key. LILO will detect this, and allow you to type in the label of the image you'd like to boot. To boot your old kernel, you'd type oldlinux, and hit Enter. To see a list of possible labels, you'd hit TAB.