2 Sun Blade T6300 Server Module Administration Guide • April 2007
What the System Console Does
The system console displays status and error messages generated by firmware-based
tests during system startup. After running those tests, you can enter special
commands that affect the firmware and alter system behavior.
After the operating system is booted, the system console displays UNIX system
messages and accepts UNIX commands. You can access the system console using the
ALOM console command.
What the ALOM System Controller Console Does
The ALOM system controller displays the results of the ALOM boot diagnostics and
initialization. If it receives no user input within 60 seconds, the ALOM system
controller console automatically connects to the system console. To return to the
ALOM system controller, type the console escape sequence #. (Hash-Period).
Using the System Console
To use the system console, you need to attach an I/O device to the server module or
the chassis. Initially, you might have to configure that hardware, and load and
configure appropriate software as well.
You must also ensure that the system console is directed to the appropriate port,
generally, the one to which your hardware console device is attached. You do this by
setting the input-device and output-device OpenBoot configuration variables.
Default System Console Connection Through the Serial Port
and Network Management Ports
On your server, the system console comes preconfigured to allow input and output
only by means of the ALOM CMT system controller. The ALOM CMT system
controller must be accessed either through the serial port or the network
management port. By default, the network management port is configured to
retrieve network configuration using DHCP and to allow connections using Secure
Shell (SSH).
Typically, you connect one of the following hardware devices to the serial port:
■ Terminal server
■ Alphanumeric terminal or similar device
■ TIP line connected to another Sun computer
