redirect output from serial port

1. modify bios:

   (1)Change BIOS settings /Server/Serial Console Features/BIOS Redirection Port to

       [Serial port 1 or 2]

   (2)change direct to modem 

2.  modify /boot/grub/menu.lst for suse

     modify /boot/grub/grub.conf  for red hat

    console=ttyS0, 115200,vt100

3. modify /ect/inittab

    c0:2345:respawn:/sbin/agetty ttyS0 19200 vt100    

4. modify  /etc/securetty

    ttyS0