With Verbose Option - Cisco Gigabit Switch Router 12008 Installation And Configuration Manual

The message in the line shown above indicates that the diagnostic tests run on the card in
slot 2 all passed.
Shutting down diags in slot 2
Board will reload
SLOT 2:%SYS-5-RESTART: System restarted --
Cisco Internetwork Operating System Software
IOS (tm) GS Software (GSR-P-MZ), Released Version 12.0(n)GS
Copyright (c) 1986-2000 by cisco Systems, Inc.
Compiled Fri 17-Sep-00 17:58 by ...
Router#
The messages in the lines shown above indicate that the diagnostics software is
automatically terminated and the line card is reloaded and restarted.

With verbose Option

If you set the verbose option, that changes the diagnostics message stream to the console.
As an example, running diagnostics on the line card in slot 2 with the verbose option set
produces a message stream to the console similar to the following (only a partial list of
messages is shown). In the following example message sequence, inserted comments
describe the type of diagnostic activity indicated by the messages.
Note
this option displays the name of the test as testing progresses, and it displays "fatalError"
when a failure is detected.
Router# diag 2 verbose
Running DIAG config check
Running Diags will halt ALL activity on the requested slot.
[confirm]
Router# <Return>
Launching a Field Diagnostic for slot 2
Downloading diagnostic tests to slot 2 (timeout set to 400 sec.)
Field Diag download COMPLETE for slot 2
In Cisco IOS Release 12.0(21)S or 12.0(21)ST, or a later release of 12.0S or 12.0ST,
Loading and Running Diagnostics
Running Diagnostics on the Cisco 12008 6-7