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Re: console login problem?

 
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denise_7
Frequent Advisor

console login problem?

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.
10 REPLIES 10
RAC_1
Honored Contributor

Re: console login problem?

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
There is no substitute to HARDWORK
John Poff
Honored Contributor

Re: console login problem?

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
denise_7
Frequent Advisor

Re: console login problem?

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.
Bill Hassell
Honored Contributor

Re: console login problem?

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.


Bill Hassell, sysadmin
Tom Ward_1
Honored Contributor
Solution

Re: console login problem?

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
Massimo Bianchi
Honored Contributor

Re: console login problem?

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
denise_7
Frequent Advisor

Re: console login problem?

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.
Massimo Bianchi
Honored Contributor

Re: console login problem?

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
Rgomes
Valued Contributor

Re: console login problem?

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

HTH.
Richard
denise_7
Frequent Advisor

Re: console login problem?

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.