cannot login on console

[wab62]

Cannot login on console terminal. "login:" prompt appears but nothing you type is echoed back. No further interaction can be done.

console is assigned to dumb terminal on tty0:

(root)/> lscons
/dev/tty0

the following appears in /etc/inittab:

cons:0123456789:respawn:/usr/sbin/getty /dev/console

and a getty process does appear in the process table:

root 11816 1 0 16:49:10 -
0:00 /usr/sbin/getty /dev/console

in smit, change/show char of a tty:

STTY attributes for RUN time
hupcl,cread,brkint,icrnl,opost,tab3,onlcr,icrnl,opost,tab3,
onlcr,echok, echoctl,echoke,imaxbel,iexten

STTY attributes for LOGIN
hupcl,cread,echoe,cs8

This is an rs6000-25s, 4.3.3.0-09

Noticed the following also:

lsattr -El sys0
...
conslogin enable System Console Login False
...

Any thoughts? Thank you in advance.

andy b.

 

[Yegolev]

The line

conslogin enable System Console Login False

seems like it would be your problem, if I were to guess. And I often do. IBM Certified -- AIX 4.3 Obfuscation

 

[wab62]

Yegolev,

I don't disagree. But I cannot find where in the system console login has been identified as False or where you would change it True.

 

[victorv]

Hi,
for lsattr command, the columns mean

NAME VALUE DESCRIPTION USER-SETTABLE
conslogin enable System Console Login False

Evindently, your console is enabled; to disable/enable
you can do smitty system / Assign the Console and flag
yes or not "Enable for login" ( starts for next reboot).

Probably is more important know the history of the system:

1) Wich kind of hardware is this console ?
2) Has is never gone on the system ?
3) If yes, which events have occured before "crash"
(eg. change location, cable, installations, other
administrator, ecc) ?
4) If no, which cable are you using to connect ? serial ?
if it is not right cable, data can reach terminal from
host, but not viceversa ( they use different wires )

5) Have you another serial port ? Try to configure a tty
and enable login and try to login; disable login and
send and receive data using cat and redirections
on /dev/tty1

ciao
buona fortuna

 

[mankind]

Im not sure this line is the problem:
I've exactly the same attribute on my server but I can connect through the system console. regards,

 

[numpdog]

Did you get an answer to this post? I'm having the same problem.
I think my situation is related to the system trying to find a graphics console even though I've gone to "Change System User Interface" via "smitty system" and defined it as "command line". When I reboot, it gets set back to "Aix CDE 1.0". And I've commented out the local console definition in /etc/dt/config/Xservers. I also have /dev/console defined to /dev/tty0 in /etc/security/login.cfg and the correct location code for the console defined in /etc/consdef.

When I shutdown to single user mode, I do get a usable console login prompt.
Thanks.
Kathy