Openboot Diagnostics; Starting The Openboot Diagnostics Menu - Sun Microsystems Sun Blade 100 Service Manual

4.7

OpenBoot Diagnostics

The OpenBoot diagnostic is a menu-driven diagnostic tool that verifies:
Internal I/O system
Ethernet
Keyboard
Mouse
Diskette drive (floppy)
Parallel port
Serial ports
NVRAM
Audio
EIDE
Video
The OpenBoot diagnostic 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

Starting the OpenBoot Diagnostics Menu

1. At the ok prompt, type:
ok% setenv mfg-mode on
mfg-mode = on
2. At the ok prompt, type:
ok% setenv diag-switch? true
diag-switch? = true
4-10 Sun Blade 100 Service Manual • October 2000