I've had this happen to me before, and it's always been a bad serial cable. Somewhere on my site I've got the information you need to set up the serial console properly - http://www.eskimo.com/~johnnyb/computers/stl/
Jonathan Bartlett On Thu, 6 Jun 2002, Furnish, Trever G wrote: > I'm trying to get a working login on my serial port and I'm running into a > problem that I initially thought was because of a mis-wired null-modem, but > now I think it's because of something I've missed in my linux configuration. > Help??? > > I've tried a commercially made null modem cable and two cables I wired > myself using two different pin-outs, all with exactly the same results. I > can get the login from the server to show up in the terminal window of the > client, but I can't get the text from the client to go back to the server. > If I use terminal programs on both sides, then the "server" can send text to > the terminal window on the client, but the client can't send text back. > > The thing that makes me believe its a configuration problem is (besides > having used three different cables now), if I flip the cable over, the > behavior of DOES NOT CHANGE. That is, I can still send from the server to > the client but not the other way around. I would expect that if it were a > wiring problem, then flipping the cable over would reverse the symptoms. > > I'm using a redhat 7.2 system as the server, with /dev/ttyS0. I haven't > changed any devices or other setups - this is just minicom on the server > side talking to hyperterminal on the client side. Minicom can send text to > hyperterminal but hypertrm can't send back. The settings are 9600bps, 8n1, > hardware flow control on both sides. > > Am I missing something? Is there some "allow bidirectional" setting I'm > missing somewhere or that the device file may be missing? I've seen it for > printer ports in the bios but not for serial ports... > > > > _______________________________________________ > Redhat-list mailing list > [EMAIL PROTECTED] > https://listman.redhat.com/mailman/listinfo/redhat-list > _______________________________________________ Redhat-list mailing list [EMAIL PROTECTED] https://listman.redhat.com/mailman/listinfo/redhat-list
