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HSD10 Operation
VAX 4000 Model 108 User Information
4-27
Upgrade Prerequisites
To download firmware to the HSD10, some external system with an RS232-compatible
serial interface is required. The system must have a communications application that
handshakes with the HSD10 and handles the source end of the image transaction.
Examples of such systems are a personal computer with an available serial port (COM1,
COM2, and so forth), or a VAX system containing hardware to support a DTE terminal
port. Specific system setup and operating information is beyond the scope of this guide.
With an appropriate interface system connected to the HSD10 using a standard 6-
conductor DECconnect cable, ensure that the following requirements are met before
attempting an upgrade. It is not necessary to disconnect the HSD10 from the DSSI or SCSI
buses.
• All drives served by the HSD10 must be dismounted.
• Any DUP connections to the HSD10 must be exited.
• Put the upgrade image file in a directory accessible by the external communication
system.
• Configure the external communication system to the following parameters:
9600 baud
8 data bits
1 stop bit
no parity
If 'Flow Control' parameter is available, set to Xon /Xoff
• The external communication system must not intercept a control-C (Ctrl/C) character,
as this is needed by the Flash Boot Utility.
Flash Boot Utility Update Procedure
Use the following procedure to update HSD10 firmware. If any errors occur during the
update sequence, and retries continue to fail, contact your Digital service representative.
1. Verify that your external communication system is communicating with the HSD10
by pressing Return one or more times; the HSD10's prompt (node name followed by
'>') should be visible.
2. Enter the RESTART command; the HSD10 will respond with "Are you sure? (y/n)"
To enter Update Mode you must enter 'Y' (omit quotes), press Return, then press
Ctrl/C within 3 seconds. If you wait too long, the HSD10 will display its current
parameter settings, and you will have to retry the RESTART command again.