gurb
$ sudo vim /boot/grub/menu.lst title Ubuntu 8.04.1, kernel 2.6.24-21-generic root (hd0,5) kernel /boot/vmlinuz-2.6.24-21-generic root=UUID=3d5dd6c0-bbd2-4ddf-9b71-1c7b78e8de3b ro quiet splash console=tty0 console=ttyS0,38400 initrd /boot/initrd.img-2.6.24-21-generic quiet
tty6
$ sudo vim /etc/event.d/tty6 respawn #exec /sbin/getty 38400 tty6 exec /sbin/getty -L /dev/ttyS0 38400 vt100
other terminal: VT100, VT220, VT320, VT420
securetty
$ cat /etc/securetty # for people with serial port consoles ttyS0