On Thu, 24 Jun 1999 mcmahill@mtl.mit.edu wrote:

> 
> 
> I just hooked up a modem to my sparc IPX and am trying to get it going.  I
> don't have anything running yet that should be using the modem.  Wanted to
> start with cu to verify hardware and basic communications to modem.  This
> is what happens:
> 
> cowboy-burt# cu --parity=none --line /dev/ttya --speed 9600 --debug all
> cu: open (/dev/ttya): Permission denied
> cu: /dev/ttya: Line in use
> 
> cowboy-burt# ls -l /dev/ttya
> crw-------  1 root  wheel  12, 0 Jun 24 16:20 /dev/ttya
> 
> cowboy-burt# cat /etc/ttys | grep ttya
> ttya    "/usr/libexec/getty std.9600"   unknown off secure
> 
> 
> Any ideas?
> 
> I used to just do 
> 
> cu -s 9600 -l /dev/tty00 on my Mac with NetBSD-1.3.
> 
> Thanks


cu is setgid dialer and setuid uucp, basically by running it
you loose the ability to open the port :)

For some reason I just can't for the life of me remeber how
to solve this problem....

Also, about it "being in use", I suggest you grab the 'lsof'
source and use that to find whomever is stealing you
serial port from you.

-Alfred Perlstein - [bright@rush.net|bright@wintelcom.net] 
systems administrator and programmer
    Win Telecom - http://www.wintelcom.net/