Sun Fire V445 Server Administration Guide - SCN Research

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To Access the System Console With an
Alphanumeric Terminal Through the TTYB Port
1. Redirect the system console by changing the OpenBoot configuration variables.
At the ok prompt, type the following commands:
ok setenv input-device ttyb
ok setenv output-device ttyb
Note – You can only access the sc> prompt and view POST messages from either
the serial management port or the network management port.
Note – There are many other OpenBoot configuration variables. Although these
variables do not affect which hardware device is used to access the system console,
some of them affect which diagnostic tests the system runs and which messages the
system displays at its console. See Chapter 8 and Chapter 9.
2. To cause the changes to take effect, power off the system. Type:
ok power-off
The system permanently stores the parameter changes and powers off.
Note – You can also power off the system using the front panel Power button.
3. Connect the null modem serial cable to the TTYB port on the Sun Fire V445
server.
If required, use the DB-9 or DB-25 cable adapter supplied with the server.
4. Power on the system.
See Chapter 3 for power-on procedures.
You can issue system commands and view system messages using the alphanumeric
terminal. Continue with your installation or diagnostic procedure, as needed. When
you are finished, type the alphanumeric terminal’s escape sequence.
For more information about connecting to and using the ALOM system controller,
see:
■ Sun Advanced Lights Out Manager (ALOM) Online Help
52 Sun Fire V445 Server Administration Guide • August 2006