On 12/24/11 19:34, Matthew Luckie wrote:
Hi
I'd like to be able to login using a null modem cable to a freebsd
server, from a freebsd laptop. It doesn't need to display boot
messages, just allow me to login after the system has booted.
I've got a null modem cable connected to my freebsd server, and on the
other end is a USB serial port on my laptop. On the server I've got:
uart0: <16550 or compatible> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0
uart0: [FILTER]
in /etc/ttys on the server:
ttyu0 "/usr/libexec/getty std.9600" vt100 on secure
and there is a getty running on that:
$ ps xa| grep getty
1825 ?? I 0:00.00 /usr/libexec/getty std.9600 ttyu0
On the laptop, I have:
ugen1.2: <FTDI> at usbus1
uftdi0: <USB to Serial Cable> on usbus1
as well as cuaU0 and ttyU0 entries in /dev.
However, when I use cu on the laptop:
sudo cu -l /dev/cuaU0 -s 9600
I never get a login prompt. If I press enter, the cursor scrolls
down. Likewise other characters echo back. I'm reasonably sure that
I'm connected to the appropriate com port on the server because if I
plug it into the other com port and press enter, nothing happens.
It feels to me that I'm missing something basic. Can someone provide
me with some clue?
Note: I'm reasonably sure the null modem cable and USB device are
fine, I've used them recently on an arm board (gateworks) running
freebsd and it worked fine then.
You sure its not easier to run a crossover UTP cable to the server? Then
you can just ssh or similar to login to the server. From my
understanding the null modem cable is used primarily for accessing the
boot console - no login.
Failing that, you'd probably need a RAS setup; probably mpd, but you may
get away with the base pppd. Network is probably you're quickest and
easiest bet.
HTH
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