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Debugger General Information
3
Autoboot
3-6
Note
This product contains a Real Time Clock (RTC) device on
board. The device is backed up with a self-contained battery.
Before shipment of the controller, the RTC device was
stopped to preserve battery life.
The board's "Self-Tests" (ST)and operating systems require that the
RTC be operating. Before using the controller after the initial
installation, start the clock by using the set SET command of the
debugger. Set the date and time using the following syntax:
SET [mmddyyhhmm]
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Example: Nov. 7, 1998, 10:37 a.m. = SET 1107981037
The C option allows you to calibrate the real-time clock. Refer to the
MVME162Bug Debugging Package User's Manual for details.
When storing the controller, ensure that the RTC is put into the
power save mode. This will extend the life of the battery. To put the
RTC into the power save mode, use the PS command of the
debugger. For example:
Autoboot is a software routine that is contained in the 162Bug
Flash/PROM to provide an independent mechanism for booting an
operating system. This autoboot routine automatically scans for controllers
and devices in a specified sequence until a valid bootable device
containing the boot media is found or the list is exhausted. If a valid
bootable device is found, a system boot from that device is started. The
controller scanning sequence goes from the lowest controller Logical Unit
Number (LUN) detected to the highest LUN detected. Controllers,
devices, and their LUNs are listed in Appendix B.
At power-up, Autoboot is enabled, and providing the drive and controller
numbers encountered are valid, the following message is displayed upon
the system console:
"Autoboot in progress... To abort hit <BREAK>"
Following this message there is a delay to allow you an opportunity to
abort the Autoboot process if you wish. Then the actual I/O is begun: the
program pointed to within the volume ID of the media specified is loaded
into RAM and control passed to it. If, however, during this time you want
to gain control without Autoboot, you can press the <BREAK> key or the
software ABORT or RESET switches.
I
[<+/-CAL>;C]
PS <Return>
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