4-8 Sun Blade 150 Service Manual • June 2002
4.7 OpenBoot Diagnostics
OpenBoot Diagnostics is a menu-driven diagnostic tool that verifies:
■ Internal I/O system
■ Ethernet
■ Keyboard
■ Firewire 1394
■ Diskette drive (floppy)
■ Flash PROM
■ Parallel port
■ Serial ports
■ NVRAM
■ PMU
■ USB
■ EIDE
■ Video
The OpenBoot Diagnostics program performs root-cause failure analysis on the
referenced devices by testing internal registers, confirming subsystem integrity, and
verifying device functionality.
Note – The OpenBoot Diagnostic test result data captured in the following code
examples represent the test result data that is output when the system being tested is
connected to a remote shell window through a TIP connection. When the system
being tested is in a stand-alone configuration, the test result data may differ.
4.7.1 OpenBoot Diagnostics Menu Overview
Upon startup, the OpenBoot Diagnostics program performs a hierarchical census of
all device nodes in the system device tree. The OpenBoot Diagnostics menu interface
is dynamically generated. The menu will appear different depending on how your
Sun Blade 150 system is configured (
CODE EXAMPLE 4-5).
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