Can not Install LILO on the MBR

[Mukaila olundegun]

Hello Everyone, On my box I have the following spec. 2* 81GByte HDD (configured for RAID1 mirroring) 1 DVD (IDE) 1 CDROM 2*800MHzPENTIUM III CPU (Linux detect both and built linux.smp and linux-up) Motherboard RIOWORKS has onboard RAID controller but not used. Linux Distribution RedHart ver 6.2 Disk partition: Root(/) Boot(/boot) home(/home)..etc. All with Raid1 configuration except swap disk. My problem is I can not install LILO on the MBR. It turns gray and can not be selected during insation. When I restart I have only "LI" display and the system stops. My question is, is there a limit for the HDD (81GB) that is preventing the installation? Or have I missed something somewhere? I made a boot disk (floppy disk) which I am using currently. I have no problem with the boot disk nor the system itself. Any help will be appreciated Mukaila