[Xastir] ax25 problems

[David A. Ranch]

For my axports, I have:

    sm0 KI6ZHD 1200 255 2 144.390 MHz (1200 bps)

The biggest point I see is the baud rate in your config file is set to 
4800 when it should be 1200.  Btw, I *had* to use the mkiss module or 
the system load would go to 100%. 

If everything loads up seemingly ok, what do you see in /sbin/ifconfig?  
You might not be getting the sm0 device name you expect.

If it helps, I have my config files here ( 
http://www.trinityos.com/HAM/CentosDigitalModes/etc/ax25/ ) and also my 
master startup script ( 
http://www.trinityos.com/HAM/CentosDigitalModes/usr/local/sbin/packetrig.sh 
) that might also help.

--David



Dale Seaburg wrote:
> Got a problem with ax25 and soundmodem install on a xubuntu 10.04 LTS 
> box (HP TC-1100 tablet).
>
> Using the Synaptic Package Manager (gui apt-get), I had installed ax25 
> stuff and soundmodem stuff */after/* I had installed xastir.  So, 
> xastir did not have the necessary parts loaded.  After realizing this, 
> I ran the update-xastir script and now ax25 parts are included in 
> xastir to where I see the interface when I add an AX25-TNC.  So far so 
> good, or so I thought.
>
> BTW, I am following the steps in the xastir wiki: HowTo AX25 and HowTo 
> Soundmodem.
>
> I have run the soundmodemconfig program to setup the soundmodem with 
> the interface name of 'sm0' and mode of MKISS.  When testing with the 
> Diagnostics tab of that same program, I see APRS packets decoded, and 
> hear the brab in the speaker.  So I know the soundmodem is working in 
> the receive section.  The transmit will be next after I solve the 
> receive problems.
>
> I start xastir and go to the Interface tab.  I have the AX25-TNC 
> already added, but, the AX25-TNC will not come up when I click the 
> Start button.  I see this error in the terminal window in which I 
> start xastir:
>
> axconfig: port sm0 not active
> ERROR: problem with axports file
> Sun Jul 17 20:36:23 CDT 2011:
>     Interface Error!  AX.25 problem with axports file
>
> Sun Jul 17 20:36:23 CDT 2011:
>     Interface Error!  Error opening interface 0 Hard Fail
>
> Here is the axports file in /etc/ax25:
>
> # /etc/ax25/axports
> #
> # The format of this file is:
> #
> # name callsign speed paclen window description
> #
> #1    OH2BNS-1    1200    255    2    144.675 MHz (1200  bps)
> #2    OH2BNS-9    38400    255    7    TNOS/Linux  (38400 bps)
> sm0    KG5LT-2        4800    256    7    144.390 MHz (1200 bps) APRS
> #sm0    K5BWD-2        4800    256    7    144.390 MHz (1200 bps) 
> Radiogram
>
> I also see (before bringing up xastir) in the terminal window I use to 
> bring up soundmodem these errors (with or without the -M option).  The 
> smstart.sh script is: soundmodem -M -v 5:
>
> barc at tc1100-dev:~$ ./smstart.sh
> sm[1936]: kiss: symlink error: /dev/pts/2 -> /dev/soundmodem0
> sm[1936]: audio: starting "/dev/dsp"
> sm[1936]: audio: forcing half duplex mode
> sm[1936]: audio: sample rate 9600 input fragsz 256 numfrags 128 output 
> fragsz 256 numfrags 128
> sm[1936]: mlockall: Cannot allocate memory (12)
>
> What might I be doing wrong?  I see no reference in either the AX25 or 
> soundmodem HowTo that talks about the seeming need for a symlink.  Am 
> I missing something.  Are the HowTo's missing something?  It would 
> seem that the symlink error and the sm0 port not active error are 
> related?
>
> Anyone with experience?  It can't be that difficult, but right now, 
> I'm blind-sided.  I want to use the MKISS rather than the KISS 
> interface.  I have not tried the KISS interface, IIRC.
>
> I'll be glad to pass along any other bits of information as needed.
>
> I'm open to words of wisdom...
>
> 73 - Dale.  KG5LT
>
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