[Xastir] serial port error with serial GPS

[Jerry Chamberlin]

unix to unix copy 

On Sun, 29 Feb 2004, Gerry Creager N5JXS wrote:

> This is a test.  How many on this list remember what 'uucp' means/meant?
> 
> gerry n5jxs
> 
> Curt, WE7U wrote:
> > On Thu, 26 Feb 2004, Amanda K. Martino wrote:
> > 
> > 
> >>I have Xastir compiled with ImageMagick support on a P3 machine running
> >>Linux Red Hat 9. I've tried using both serial TNC and serial GPS with
> >>Xastir. Serial TNC works just fine. Serial GPS, however, gives me an
> >>"Error opening Interface 0. Hard fail" when I try to start the interface.
> >>I did run the chmod 4555 /usr/local/bin/xastir command when I compiled
> >>Xastir, and my procedure for starting up Xastir is as follows:
> >>login to linux as user capstone
> >>su to root
> >>xastir & from a terminal window as root.
> > 
> > 
> > Once you've done the "chmod" command, it allows Xastir to gain root
> > priviledges when it needs to, such as when opening ports.  You don't
> > need to "su" in order to run Xastir, and in fact it's not
> > recommended because then when Xastir tries to drop priviledges when
> > it doesn't need them, you're still running as root.
> > 
> > I'd run Xastir as the "capstone" user.
> > 
> > 
> > 
> >>I don't see how it could be a permissions problem, but as I'm new to
> >>Xastir I don't have much to base that on except what I just described
> >>above. As mentioned before, serial TNC works perfectly fine. Does anyone
> >>have any suggestions as to what might be causing this? Thanks in advance
> >>for any help.
> > 
> > 
> > If you do an "ls -l /dev/ttyS?" you'll see the permissions and
> > user/group for your serial devices.  You are probably using
> > /dev/ttyS0 and /dev/ttyS1 for your ports, right?
> > 
> > In your /etc/group file, add your "capstone" user to whatever group
> > the serial ports belong to.  On my system it's the "uucp" group.
> > Change the permissions on the serial devices to 660 if they're not
> > already.  Mine look like this:
> > 
> > crw-rw----    1 root     uucp       4,  64 2003-10-02 13:45 /dev/ttyS0
> > crw-rw----    1 root     uucp       4,  65 2003-10-02 13:45 /dev/ttyS1
> > crw-rw----    1 root     uucp       4,  66 2003-10-02 13:45 /dev/ttyS2
> > crw-rw----    1 root     uucp       4,  67 2003-10-02 13:45 /dev/ttyS3
> > 
> > After that, you should be able to come in using the "uucp"
> > permissions as the "capstone" user, and run Xastir as the "capstone"
> > user as well.  Make sense?
> > 
> > Also make sure you have the case correct for the device name in the
> > Interface->Properties dialog for that interface.  You need a capital
> > 'S'.
> > 
> > --
> > Curt, WE7U			    archer at eskimo dot com
> > Arlington, WA, USA		http://www.eskimo.com/~archer
> > "Lotto:    A tax on people who are bad at math." -- unknown
> > "Windows:  Microsoft's tax on computer illiterates." -- WE7U
> > "The world DOES revolve around me:  I picked the coordinate system!"
> > _______________________________________________
> > Xastir mailing list
> > Xastir at xastir.org
> > https://krypton.hscs.virginia.edu/mailman/listinfo/xastir
> 
> -- 
> Gerry Creager -- gerry.creager at tamu.edu
> Network Engineering -- AATLT, Texas A&M University	
> Cell: 979.229.5301 Office: 979.458.4020 FAX: 979.847.8578
> Page: 979.228.0173
> Office: 903A Eller Bldg, TAMU, College Station, TX 77843
> 
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