From owner-freebsd-questions Tue May 5 11:14:33 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id LAA07361 for freebsd-questions-outgoing; Tue, 5 May 1998 11:14:33 -0700 (PDT) (envelope-from owner-freebsd-questions@FreeBSD.ORG) Received: from po4.wam.umd.edu (po4.wam.umd.edu [128.8.10.166]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id LAA07340 for ; Tue, 5 May 1998 11:14:19 -0700 (PDT) (envelope-from kee@wam.umd.edu) Received: from rac7.wam.umd.edu ((IDENT kee)@rac7.wam.umd.edu [128.8.10.147]) by po4.wam.umd.edu (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id OAA04472 for ; Tue, 5 May 1998 14:14:04 -0400 (EDT) Received: from localhost by rac7.wam.umd.edu (8.9.0.Beta2/8.8.7) with SMTP id OAA13915 for ; Tue, 5 May 1998 14:13:59 -0400 (EDT) X-Authentication-Warning: rac7.wam.umd.edu: kee owned process doing -bs Date: Tue, 5 May 1998 14:13:59 -0400 (EDT) From: Byoung-Kee Yi To: freebsd-questions@FreeBSD.ORG Subject: [Q] serial communication Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Hi everyone - I would like to connect a laptop to a desktop. Both run FreeBSD R2.2.1 on them and, since I don't have lan cards, I found serial communication is the most economical way I can afford. That is, I would like to use my laptop as a dumb terminal attached to my desktop. What I need is just simple file transfers using zmodem programs. To that end, I made a full DB25-DB9 null modem cable with the following wirings: DB9 DB25 1 20 2 2 3 3 4 6 4 8 5 7 6 20 7 5 8 4 The serial ports are COM1 on the laptop and COM2 on the other. The corresponding /etc/ttys entry of the desktop is, ttyd1 "/usr/libexec/getty std.9600" unknown on secure Then, I did the following on the laptop: % cu -l /dev/cuaa0 -s 9600 I just got a message saying the device was already in use. So I removed the "jumpering" wires (1&6 at DB9 end and 6&8 at DB29 end), and I didn't get the message, but this time I didn't get the familiar login screen either. Nothing happened except for "CONNECTED." message from cu program. What am I missing here? I would appreicate any suggestions. -- Kee To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message