From owner-freebsd-questions Wed Jun 12 17:42:46 2002 Delivered-To: freebsd-questions@freebsd.org Received: from hobbiton.shire.net (frogmorton.shire.net [204.228.145.136]) by hub.freebsd.org (Postfix) with ESMTP id 9617437B40B for ; Wed, 12 Jun 2002 17:42:33 -0700 (PDT) Received: from [204.228.145.130] (helo=localhost) by hobbiton.shire.net with asmtp (Exim 3.36 #9) id 17IIh7-0008FY-00; Wed, 12 Jun 2002 20:42:33 -0400 Date: Wed, 12 Jun 2002 20:42:32 -0400 Subject: help with serial ports as terminal lines Content-Type: text/plain; charset=US-ASCII; format=flowed Mime-Version: 1.0 (Apple Message framework v482) Cc: chad@shire.net To: freebsd-questions@FreeBSD.ORG From: Chad Leigh -- Shire.Net LLC Content-Transfer-Encoding: 7bit Message-Id: <72582A9E-7E66-11D6-854A-0003931BED80@shire.net> X-Mailer: Apple Mail (2.482) Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Hi I am sitting at my machines. I have two machines, each with a Tyan Tiger MP MB (1 cpu) and pretty much identical kernels (4.5R-p6). Each sees its serial ports. Here is a dmesg -- it is identical for both host# dmesg | grep sio sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0 sio0: type 16550A, console sio1 at port 0x2f8-0x2ff irq 3 on isa0 sio1: type 16550A host# I have getty running on the console device and the kernel is set for sio0 at std.9600 If I stick a null modem cable between sio0 and sio1 on my first computer, it works fine and I can use minicom or kermit to log into the machine. Ie, log into itself going out its own sio1 into its own sio0 I do the same thing on my second computer and nothing happens. The first computer was a from scratch 4.5R install that was cvsup to -p6. The second (non working) machine was a 4.2R machine that I upgraded through cvsup to 4.5R-p4 and then -p6. I tried remaking the /dev special files but that did not help. The rc.serial script is identical on both machines. I would ideally like to cross link sio1 on each machine to the others sio0 console. When I do this, given the above, machine 1 (the one that works with itself) cannot see anything on machine 2 but I can still log in to machine 2, even though I see nothing (ie, nothing froim machine2 and no echoing of my typing). If I try from machine 2 I see all the console messages and the login prompt on machine 1, but I cannot type anything and cannot get any response on machine 1. Both have getty running on console (sio0) and I do not know where to start. I replaced the motherboards last night (for a totally different reason) but had the exact same problem on the previous sets of motherboards (Abit KG-7). I have read through the serial comms part of the handbook and have tried various things there too... thanks for any help. I need to get this working tonight if I can since I have to fly out of here and go home tomorrow early, so I have no hands on after tonight, and I would like to be able to administer the machines remotely if possible through the console. Thanks Chad To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message