no.
ls /dev/tty*
should show you, that they're already prepared.

You add them in inittab:
Code:
# /sbin/getty invocations for the runlevels.
#
# The "id" field MUST be the same as the last
# characters of the device (after "tty").
#
# Format:
#  <id>:<runlevels>:<action>:<process>
1:12345:respawn:/sbin/getty 38400 tty1
2:2345:respawn:/sbin/getty 38400 tty2
3:2345:respawn:/sbin/getty 38400 tty3
4:2345:respawn:/sbin/getty 38400 tty4
5:2345:respawn:/sbin/getty 38400 tty5
6:2345:respawn:/sbin/getty 38400 tty6
8:2345:respawn:/sbin/getty 38400 tty8
9:2345:respawn:/sbin/getty 38400 tty9
10:2345:respawn:/sbin/getty 38400 tty10
tty7 is usually used for X11 so leave it out.
Misguided knoppixuses decided to boot with X11 on tty3 or 5.
Gee!
Pfui![/code]