Reaching The Sc> Prompt; Openboot Ok Prompt - Fujitsu SPARC Enterprise T2000 Administration Manual

Reaching the sc> Prompt
There are several ways to get to the sc> prompt:
If the system console is directed to the serial management and network
■
management ports, you can type the ALOM CMT escape sequence (#.).
You can log in directly to the system controller from a device connected to the
■
serial management port. See
You can log in directly to the system controller using a connection through the
■
network management port. See
page 8.

OpenBoot ok Prompt

A SPARC Enterprise T2000 server with the Solaris OS installed operates at different
run levels. For a full description of run levels, refer to the Solaris system
administration documentation.
Most of the time, you operate a SPARC Enterprise T2000 server at run level 2 or run
level 3, which are multiuser states with access to full system and network resources.
Occasionally, you might operate the system at run level 1, which is a single-user
administrative state. However, the lowest operational state is run level 0. At this
state, it is safe to turn off power to the system.
When a SPARC Enterprise T2000 server is at run level 0, the ok prompt appears.
This prompt indicates that the OpenBoot firmware is in control of the system.
There are a number of scenarios under which OpenBoot firmware control can occur.
By default, before the operating system is installed the system comes up under
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OpenBoot firmware control.
When the auto-boot? OpenBoot configuration variable is set to false, the
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system boots to the ok prompt.
When the operating system is halted, the system transitions to run level 0 in an
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orderly way.
When the operating system crashes, the system reverts to OpenBoot firmware
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control.
During the boot process, when there is a serious hardware problem that prevents
■
the operating system from running, the system reverts to OpenBoot firmware
control.
When a serious hardware problem develops while the system is running, the
■
operating system transitions smoothly to run level 0.
"Accessing the System Controller" on page
"Activating the Network Management Port" on
Chapter 1 Configuring the System Console
7.
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