[rescue] RS/6000 7012 370
bear at typewritten.org
Tue Jun 10 21:34:26 CDT 2008
On Jun 10, 2008, at 12:24 PM, Halford Johnson wrote:
> After reseating all the cards and banging on the LEDs a couple more
> times, I
> now believe that the code is '260' which means "information is being
> displayed on the display console". There is still no monitor output
> though. I am not sure what to do.
RS/6000 systems define their console in a firmware setting,
manipulated by an AIX command 'chcons'.
If the system was defined with the graphics console, no amount of
plugging in or unplugging a keyboard and monitor will change it to the
serial port, and vice versa.
The other piece of "magic" is that AIX will not, by default, display a
login banner on a serial terminal without working hardware flow
control. A three-wire (or even five-wire) serial cable is not going to
Booting the install media in service mode will display a prompt on all
configured devices capable of serving as a console, to configure that
device as the console _for the purposes of installing AIX or
performing maintenance from the miniroot shell_. You can, however, use
this to get access to 'chcons' in order to change the console on an
already-installed AIX system.
More information about the rescue