Reboot the system. If you have problems, you can use the boot diskette you just make. To do so, you may have to modify your BIOS's boot-up sequence to A:, C:.
You should modify the file /etc/lilo.conf in case you later want to run LILO again. Here's an example of how the file can look:
| boot=/dev/hda                 # Install LILO on first hard
                              # disk.
map=/boot/map                 # Location of "map file".
install=/boot/boot.b          # File to copy to floppy's
                              # boot sector.
prompt                        # Have LILO show "LILO boot:"
                              # prompt.
timeout=50                    # Boot default system after 5
                              # seconds. (Value is in tenths of
                              # seconds.)
image=/boot/vmlinuz           # Location of Linux kernel. The
                              # actual name may include a version
                              # number, for example
                              # "vmlinuz-2.0.35".
    label=linux               # Label for Linux system.
    root=/dev/hda1            # Location of root partition on
                              # new hard disk. Modify this as
                              # appropriate for your system.
    read-only                 # Mount partition read-only at
                              # first, to run fsck. | 
Slackware only. Use image=/vmlinuz.