grass5.0b fifo.1a not available

[Vitaliy Ababiy]

Hello!
I am a new grass user and try start 
just compiled grass5.0b.

But my /usr/local/grass5.0beta/dev/
have not any files.

And can not load any maps.
my monitorcap from montcap.sample
have only one uncomment string:

x0:driver/XDRIVER:X-windows graphics display: \                                               
     /usr/local/grass5.0beta/dev/fifo.1a
/usr/local/grass5.0beta/dev/fifo.1b \                
     ::any terminal    

what is fifo.1a?

Is it devise from my main UNIX dir?
/dev/-tty ?

Thanks for any help!

PS Linux for Debian with use TclTk - all start OK

|       Vitali Ababi            |
| Physical Technical Department |
| Tomsk Polytechnic University  |
|     634004 Tomsk, Russia      |