I wondered about the chmod command. I have changed it back to its previous setting. The user is me for both Xastir and minicom, and I belong to the 'dialout' group. I would have thought that if minicom could access the serial port, then Xastir should also.

I agree that making it world readable/writeable is not a good plan, however, that is what got it working. I would love to change that, I just don't know what to change.

Michael WA7SKG


Tom Russo wrote on 10/24/19 11:32 AM:
On Thu, Oct 24, 2019 at 10:51:03AM -0700, we recorded a bogon-computron collision of 
the <[email protected]> flavor, containing:
Progress is definitely being made. Using the
https://xastir.org/index.php/HowTo:Debian_Stretch_or_Jessie went through
smoothly.

My next problem was getting the interface to work. I could access my TNC
through minicom without difficulty, however Xastir could not access it.
I did the "chmod 4755 /usr/local/bin/xastir" I found recommended in
several places with no joy. Finally, in desperation, I did "chmod 777
/dev/ttyS0" and Xastir successfully connected to the TNC and I am
displaying data. That probably is not the best option, but it is all I
could get to work for now.

The best bet is to add your user ID to whatever group owns the /dev/ttyS0
device (probably "dialer" or something like that).

Making the device world readable and writable is not the safest bet.

Changing Xastir to 4755 only helps with accessing the AX.25 kernel networking
stuff and wouldn't help with accessing regular serial ports.  If you're testing
your tnc in minicom you're probably not using AX.25.

In fact, making Xastir "suid root" is also not the safest approach,
although Xastir is pretty careful do drop its permissions except when it needs
them.  But that's another story (some distros actually handle this in their
xastir and ax25 packages by having an ax25 group that has permission to access
the ax25 interfaces, and making Xastir sgid to that group.  Again, that's
another story).
Tom Russo wrote on 10/24/19 8:15 AM:
On Thu, Oct 24, 2019 at 08:59:41AM -0600, we recorded a bogon-computron collision of 
the <[email protected]> flavor, containing:
On Thu, Oct 24, 2019 at 08:57:17AM -0600, we recorded a bogon-computron collision of 
the <[email protected]> flavor, containing:
Can somebody please point me in the right direction for current
information on installing Xastir on a Mint system?

Generally speaking, if you look at something like the Ubuntu instructions
and try to find packages with the same base name as the ones listed (modulo
version numbers which are very likely outdated), you should be on the right
path.

Jason's suggestion of looking at Debian's instructions is a good one, since
Mint is a Debian variant.

Ignore all reference to GDAL.  Xastir no longer uses it and that section of
that wiki guide didn't get updated.

Well, it is now.  Just went through this one page and cleaned it up.  I also
removed a bunch of links to OS versions that are ridiculously old (2009 and
thereabouts) and even one that appears no longer to exist (mepis).

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