minicom problems if used with ssh ?

Vilius · 08-18-2010, 03:21 AM

Hello,

I have two linux(debian lenny) machines connected by null modem serial cable. Machine A act as client, machine B act as server. I use minicom on A to connect to machine B.
minicom config on A:

Code:

A -    Serial Device      : /dev/ttyS0
B - Lockfile Location     : /var/lock
C -   Callin Program      : 
D -  Callout Program      : 
E -    Bps/Par/Bits       : 38400 8N1
F - Hardware Flow Control : No
G - Software Flow Control : Yes

getty on B:

Code:

T0:23:respawn:/sbin/getty -L ttyS0 38400 vt102

If I login to box A using attached monitor and keyboard (device tty0) and issue "minicom -o" - it works OK - and I get functional text terminal of B.

But if I connect to A over ssh (device /dev/pts/0) from internet(client putty), and issue "minicom -o" - I get minicom status "Online" - but no text terminal of B - there is no login prompt.

Config is 100% the same in both cases.
Machines A and B are dual boot(centos + debian) and I tried some variants but results are exactly the same whatever linux os I use.
Could someone suggest solution for this ?

thanks
Vilius

gdejonge · 08-18-2010, 08:23 PM

ssh to box A
Check on which terminal you are connected

Code:

$ who
 user  pts/2        2010-08-19 03:14 (orion)

Now start minicom with the right port

Code:

$ minicom -o -p /dev/pts/2

Warning: Ctrl-keys won't work. To stop minicom you'll have to close the ssh connection with the ~. keystrokes

Gerrard