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Newsgroups: comp.os.386bsd.questions Path: sserve!newshost.anu.edu.au!munnari.oz.au!news.Hawaii.Edu!ames!elroy.jpl.nasa.gov!usc!sol.ctr.columbia.edu!destroyer!nntp.cs.ubc.ca!uw-beaver!herron From: herron@cs.washington.edu (Gary Herron) Subject: [NetBSD 0.9] What is wrong with /dev/tty and /dev/com[01] ? Message-ID: <1993Oct19.162634.28220@beaver.cs.washington.edu> Sender: news@beaver.cs.washington.edu (USENET News System) Organization: Computer Science & Engineering, U. of Washington, Seattle References: <2956kr$bm5@homer.cs.mcgill.ca> <1993Oct13.121947.19474@jupiter.sun.csd.unb.ca> Date: Tue, 19 Oct 93 16:26:34 GMT Lines: 48 I have just installed NetBSD-0.9 on my PC and have run into some problems. I had 386BSD running on this system successfully for quit a while. I ran X11 with a mouse on one COM port, and often ran kermit through a modem on the other COM port. Now for my questions. Any help would be appreciated. (1) What is wrong with /dev/tty? The device /dev/tty seems to be inaccessible to any but the superuser, so kermit fails straight off (since it opens /dev/tty). Indeed echo junk > /dev/tty fails for all but the superuser. Changing permissions and owner of the `device' /dev/tty does not affect the outcome. (2) What is wrong with the COM ports /dev/com0 and /dev/com1? Running kermit (as superuser to avoid problem 1) can access the modem and sometimes dial-out, but nothing is echoed to the screen (not even an OK in response to the AT command). Very quickly kermit hangs so completely that ^C and ^Z are not effective, and a system reset and reboot is necessary. X11 hangs immediately, so to check on the mouse (being suspicious of COM ports by now), I tried cat -v /dev/com0 which on 386BSD prints strings of characters whenever the mouse is moved. Nothing is printed under NetBSD-0.9. I am aware of the fact that COM1 is /dev/com0 and COM2 is /dev/com1, so no confusion there has lead to these problems. Also I get the same results if I try the above on the devices /dev/tty0? (to which the /dev/com? are linked). Dr. Gary Herron | Email: gjh@ag.wa.com Applied Geometry | Snail: PO Box 4561 206-628-0342 | Seattle WA 98104 -- Dr. Gary Herron | Email: gjh@ag.wa.com Applied Geometry | Snail: PO Box 4561 206-628-0342 | Seattle WA 98104