[ale] Trying to use minicom and get a console connection

[Gene Matthews]

I get no response at all from minicom.  I'm on Red Hat 7.1.

I'm pretty ignorant regarding serial lines and even modems on linux.  I 
have a cable modem at home, not dial-up.

Thanks for any help or suggestions.

Gene

PS:  setserial and lsmod output below.




# setserial /dev/ttyS0
/dev/ttyS0, UART: 16550A, Port: 0x03f8, IRQ: 4


# lsmod
Module                  Size  Used by
sr_mod                 15264   0  (autoclean)
maestro3               25328   1  (autoclean)
ac97_codec              8800   0  (autoclean) [maestro3]
soundcore               4464   2  (autoclean) [maestro3]
appletalk              19664   0  (autoclean)
ipx                    15520   0  (autoclean)
cisco_ipsec           280352   0  (unused)
autofs                 11264   0  (autoclean) (unused)
ds                      7280   2
yenta_socket           11440   2
pcmcia_core            43072   0  [ds yenta_socket]
8139too                16480   1  (autoclean)
ipchains               38976   0  (unused)
ide-scsi                8352   0
scsi_mod               95104   2  [sr_mod ide-scsi]
ide-cd                 26848   0
cdrom                  27232   0  [sr_mod ide-cd]
usb-uhci               20720   0  (unused)
usbcore                49664   1  [usb-uhci]




Charles Shapiro wrote:

> Hmm. So what happens, or doesn't happen? Sounds like your hardware is
> OK. I'm assuming you get no response at all from minicom. Since you
> included some information from minicom, I am also assuming that it does
> run (e.g. you don't get messages like "cannot open..." and then a return
> to the OS prompt).
> 
> Have you tried connecting to a modem or other DCE and seeing if you get
> a response from that? This will tell you whether Linux and minicom are
> seeing the serial port correctly. By default, minicom does some
> configuration on the modem, and you should see that stuff happening when
> you bring it up. Do you see random kvetching from the other side over
> this? If I knew  what distro you were running, I might be able to give
> you some advice on what start scripts need to be present. Even without
> that, you could do an lsmod(8) and verify that the "serial" driver is
> loaded.
> 
> I've successfully used minicom to connect to an ISP with a modem before
> on debian.  My problems mostly came down to not having the serial ports
> configured correctly with setserial(8) or not having the serial driver
> loaded. 
> 
> -- CHS
> 
> -----Original Message-----
> From: Gene Matthews [mailto:gene at mmc-inc.com]
> Sent: Tuesday, November 13, 2001 12:02 PM
> To: 'ale at ale.org'
> Subject: [ale] Trying to use minicom and get a console connection
> 
> 
> Any minicom experts around?  I'm trying to use my linux (RH7.1) laptop 
> and minicom to connect to a remote terminal server's console port.
> 
> I can do this successfuly on Windows using HyperTerminal, but I don't 
> have it working on Linux yet.
> 
> I have
> 
> A -    Serial Device      : /dev/ttyS0  (I've tried ttyS1 also)
> B - Lockfile Location     : /var/lock
> C -   Callin Program      :
> D -  Callout Program      :
> E -    Bps/Par/Bits       : 9600 8N1
> F - Hardware Flow Control : No
> G - Software Flow Control : No
> 
> for the serial port setup.
> 
> 
> This matches what I was using for HyperTerminal (COM1, 9600 8N1 w/ no 
> flow control) and I'm using the exact same cable.
> 
> 
> The cable is a cat 5 (plugs into the console port of the term server) 
> and a RJ45 to 9pin converter on the other side for the pc serial port.
> 
> I'd appreciate any thoughts/suggestions.
> 
> Thanks,
> 
> Gene
> 
> 
> 
> 
> 
> ---
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> 




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