bokonon@prism.gatech.EDU (Chris Cheyney) (06/04/91)
I have a problem with AIX 3.1 and gettys. I add a line for my custom
getty like this into /etc/inittab:
tty2:2:respawn:/etc/mygetty -a tty2 19200
and all looks like it goes well. I wander off and leave the port
alone for a while, perhaps with people trying to call into it, or not,
I'm not altogether certain, but I come back and am looking at this
line:
tty2:2:respawn:/etc/getty /dev/tty2
which is not right for what I want. No person has modified it that I
know of, so I'm assuming that some process is thwacking me. Has anyone
else encountered this, and if so, how did you solve the problem?
This reset of /etc/inittab entries occurs always after a reboot and
occurs other times (these circumstances I'm not sure of). Any
suggestions?
By the way, mygetty is a wrapper for a modem so I don't make it chatter
endlessly. It forks off /etc/getty with the -r option.
Any suggestions for solving this problem (as well as explaining why
sometimes I receive a SIGCHLD signal) would be appreciated.
Thanks in advance.
chris
---
Chris Cheyney | When you go to North Carolina,
386 Rose Creek Road, Franklin NC 28734 | you set your watch back 20 years.
Internet: chris@dixie.com (Marietta, GA) | When you go to Georgia, you set
UUCP: {backbones}!emory!rsiatl!chris | your laws back 100.Robin D. Wilson (06/04/91)
In article <30502@hydra.gatech.EDU> bokonon@prism.gatech.EDU (Chris Cheyney) writes: > I have a problem with AIX 3.1 and gettys. I add a line for my custom > getty like this into /etc/inittab: > tty2:2:respawn:/etc/mygetty -a tty2 19200 This is not the best way to use something different than the default. Use SMIT to set the port to "Login: DISABLED". This will create an entry in the inittab file that looks like this: tty2:2:off:/etc/getty /dev/tty2 THEN... add an entry that looks like: TTY2:2:respawn:/etc/mygetty -a tty2 19200 The fact that this entry is not contained in the ODM will prevent the system from trying to "correct" it using the settings you defined through SMIT. > and all looks like it goes well. I wander off and leave the port > alone for a while, perhaps with people trying to call into it, or not, > I'm not altogether certain, but I come back and am looking at this > line: > tty2:2:respawn:/etc/getty /dev/tty2 This is what the ODM gets for you. It will determine the "correct" settings for a tty based on what you set through SMIT. If you set it up correctly in SMIT, then you will get what you wanted here. > which is not right for what I want. No person has modified it that I > know of, so I'm assuming that some process is thwacking me. Has anyone > else encountered this, and if so, how did you solve the problem? The process that is "thwacking you" is probably SMIT. Or, it could be anyone of a number of other process that call the syschck routines. > By the way, mygetty is a wrapper for a modem so I don't make it chatter > endlessly. It forks off /etc/getty with the -r option. I suggest you use "DELAY" for the "Enable LOGIN" field in SMIT. This uses the "uugetty -r" code to keep the modem from "chattering". If you like, you can mail me, and I will send you (via email) a complete guide to modem setup on the rs-6000. > Any suggestions for solving this problem (as well as explaining why > sometimes I receive a SIGCHLD signal) would be appreciated. Don't know about this one... When do you receive the SIGCHLD? +-----------------------------------------------------------------------------+ |The views expressed herein, are the sole responsibility of the typist at hand| +-----------------------------------------------------------------------------+ |UUCP: pensoft!robin | |USNail: 701 Canyon Bend Dr. | | Pflugerville, TX 78660 | | Home: (512)251-6889 Work: (512)343-1111 | +-----------------------------------------------------------------------------+