All well and good, but I have had better luck using "cu -l tty{whatever} -s {baud rate}". Contrary to other postings, minicom will work just fine also. The trickey bit comes in the wiring, you may need to run a null modem cable or adapter between the ports, my preferred method (when in doubt) is to get a straight-through cable with a null-modem for one of the ends. That way you have everything you need either way, and if you don't need it this time the null-modem will come in handy later. Dan Taylor On Wednesday 21 March 2001 17:18, you wrote: > On Wed, Mar 21, 2001 at 04:26:01PM -0500, duncan wrote: > >On a related subject, I have been trying to set up a box that i can ssh > >to, that will then allow me to connect over serial to a boot console on > >several different machines. > > > >I have a RocketPort PCI card from comtrol, and a dumb black box that > >connects to this card, and has 16 rj-45 ports on it. I use that, and > >rj-45 to db-9 converters attatched to the serial port on box1, box2, box3, > >... box16 (all redhat6.2 and 7.0). > > > >My objective is clear, my method is not clear (to me) > > get the hardware setup, connect the PC serial ports to the rocket port > "hub" ssh to the machine with the rocketport card on it and run kermit on > the tty > > you can put commands in files like so > set line /dev/ttyR0 > set carrier-watch off > connect > > then you can run > kermit <filename> and get serial access to the box connected to port (1) I > hate the way they're numbered. > > You'll prolly have to configure the kernels on the machines to support > console over serial port support (under charachter devices), and setup lilo > to puke the stuff out the serial line. > > append="console=ttyS0" in lilo.conf should do it if the cable is connected > to com1. > > append="serial=ttyS0" if you wanna see the lilo prompt, you will also need > to adjust the speed on the kermit session to match that of what you set in > the serial port too. you can do this in BIOS (I think) or in the above > append line > > append="serial=ttyS0,115200" > > I can also offer you the pin-outs for the connectors if you need them, and > you use a normail CAT5 cable between the rocketport hub and the DB-9 -> > RJ-45 converters. > > >I need to be able to ssh to this PC with 16port black box that attatches > >to RocketPort and use minicom (or something similar) and get a conolse > >connection to the other boxes when something flakes out. Buffering of the > >screen is nice too. > > We use this all the time (duh, kernel hacking) > > >A while back, i got it setup so i could echo back and forth from one box > >to the other, and then i was able to direct the login prompt at the > >console over serail (at the price of not having the console be my > >monitor) but I wouldnt take anyting for input. > > not following you, it should be writeable as well as readable. > > >Any ideas? > > I have machines with magical, mystical BIOSes that allow me to get to them > over serial line. (ServerWorks mobo's have this) > > >I believe that this shouldnt be difficlut, nor everly complex. We are > >trying to implement this over a 5-10K box from clearview or someone like > >that. > > I use a 386 :-) > > >I have read the HOW-TO from LDP, and searched around for quite a bit on > >google and deja (at least when deja was deja and not google) > > T0:23:respawn:/sbin/getty -L ttyS0 9600 vt100 > > that's the line I've used to put a getty on it, but it has to be slightly > slower then I think. Better to just use it for output (especially when you > get several megs of kernel messages (gfs.o is over 10MB with all the > debugging stuff turned on) > > >I think the core of my problem lays at the linux level, not the device. I > >dont feel like i have the system set up to do console over serial port... > > Actually your problem is probably pinouts on the cables if you do the stuff > above and still don't get it to go. ---------------------------------------- Content-Type: application/pgp-signature; charset="us-ascii"; name="Attachment: 1" Content-Transfer-Encoding: 7bit Content-Description: ----------------------------------------