topic Re: console login problem? in Operating System - HP-UX

console login problem?

denise_7 — Tue, 17 Aug 2004 14:27:57 GMT

Hello All,

I tried to login the serial console login, to view the error logs and clear the "ATT" light blinking.

Taking a dummy terminal, and plugging in serial port, tried login and the prompt never came up...just blink repeatedly. I was looking for the prompt.

I viewed the error logs on another HP-UX system so I know the procedure I am using is correct.

I also tried to login via the web console, and when I successfully login, hitting the return key several times caused garbled message to appear and I never saw the prompt.

I looked in the forum for similiar cases like my problem, but these did not help. Can you guys shed some light on how I should be going about to fix the problem?

Thanks! In advance.

Re: console login problem?

RAC_1 — Tue, 17 Aug 2004 14:31:46 GMT

What are dummy terminal settings?? Should be like follows.

1. Bits persecond-- 9600
2. Data Bits -- 8
3. Parity -- none
4. Stop bits -- 1
5. Flow Control -- none or Hardware

If this does not help, from secure console, can you reset the console and try??

Anil

Re: console login problem?

John Poff — Tue, 17 Aug 2004 14:34:31 GMT

Hi,

If you have some other access (telnet) to the server, try logging in and see if the 'getty' process is running for the console. It should look something similar to this:

>ps -ft console
UID PID PPID C STIME TTY TIME COMMAND
root 11859 1 0 Jun 19 console 0:00 /usr/sbin/getty console console

JP

Re: console login problem?

denise_7 — Tue, 17 Aug 2004 14:57:03 GMT

JP,

Yes, I got getty running, just like you indicated.

I am not sure its the dummy terminal, because this same terminal works on the other HP server.

I think its some configuration problem or what ever.

Thank U.

Re: console login problem?

Bill Hassell — Tue, 17 Aug 2004 18:32:56 GMT

Wrong cable. There are 2 completely incompatible cables for serial devices, a modem and a printer cable. Modem cables are called straight through and a printer cable is a crossover or null-modem cable. You need a null modem cable.

Now the web console propbably has the right cable but it is possible that someone has changed the GSP settings (9600 8N1). You'll have to experiment to get it right for the web console, then change it back to 9600 8N1 once you get connected.

Re: console login problem?

Tom Ward_1 — Wed, 18 Aug 2004 02:54:08 GMT

Hello Denise,

Perhaps your GSP is hung. From a normal network terminal session (not console) to your host you can try
stty +resetGSP < /dev/GSPdiag1
to reset the GSP. That may do it for you.

Good luck,
Tom

Re: console login problem?

Massimo Bianchi — Wed, 18 Aug 2004 03:08:58 GMT

Hi,
which model of box is it ?

It is also possible that you are connecting to the wrong device, may be UPS .

Or try to reset the dummy terminal: shutdown (the terminal), press the "d" button and power it on, keeping the d button down for about 7 seconds. It will reset the terminal (most of them).

HTH,
Massimo

Re: console login problem?

denise_7 — Wed, 18 Aug 2004 08:35:16 GMT

Bill,

You mentioned wrong cable. If this is a wrong cable, then how is it that it works on another HP box?

Massimio, both boxes are N-Class 9000 boxes.

Resetting the terminal, is this done from the terminal, as I suspect it is.

Thanks.

Re: console login problem?

Massimo Bianchi — Wed, 18 Aug 2004 08:46:52 GMT

HI,
yes, it is done from the terminal.

power it off, hold down the d key, power on.

You will hear a beep, or wait 7 seconds (about).

Terminal will be resest.

OR

try to echange the cbales between the N-class, maybe the black cable is faulty.

HTH,
Massimo

Re: console login problem?

Rgomes — Wed, 18 Aug 2004 12:33:32 GMT

f10-->f8-->hpter,---save default settings. enter.

HTH.
Richard

Re: console login problem?

denise_7 — Wed, 18 Aug 2004 13:09:16 GMT

Tom Ward's suggestion solved this problem. Maybe Massimo's suggestion would solve this problem also. Anyway, after the GSP reset, I was able to view the error logs.

Thanks for all of your help.