Table of Contents

Reloading Flash on a Line Card or NP
Reloading Flash on a Switch Card

Flash Loading

This appendix explains how to load new software into the flash EPROMs on the cards in a LightStream 2020 enterprise ATM switch. Flash memory contains card initialization software, power-on self tests, and the SWACC loader, which loads software from the hard disk into the card when the card powers up.

Whenever you install a new line card, switch card, or network processor (NP) in a LightStream 2020 switch, do the following:

Verifying Flash

After installing a new card, follow these instructions to find out whether the content of the card's flash memory is up to date.

Step 2   To display the flash checksums of all the cards in the chassis, type:

bash# sysver -a | more

Step 3   Refer to your LightStream 2020 Release Notes for a list of the correct checksums for your software version.

Step 4   If the checksum displayed for the new card matches the one listed in the release notes, stop here-the flash is up to date. If the checksum does not match, use the appropriate procedure from the section "Reloading Flash", below, to load an up-to-date flash image into the card.

Reloading Flash

This section contains two flash reloading procedures:

Reloading Flash on a Line Card or NP

If the "Verifying Flash " procedure reveals that you have out-of-date flash contents on an NP or line card, follow this procedure to reload flash on that card.

Step 2   If you have not already done so, log into the primary NP as root.

Step 3   Type the following command to load the new image into flash memory:

LSnode:2# fcload -s <slot#> -flash -force

<slot#> represents the slot number of the card with the incorrect flash checksum.

Step 4   Once flash is reloaded, you must reboot the system to initiate operation with the new flash, as follows:

Step 5   Repeat the "Verifying Flash " procedure at the beginning of this appendix. If the card still has an incorrect flash checksum, contact your customer support representative.

Reloading Flash on a Switch Card

If the "Verifying Flash " procedure at the beginning of this appendix reveals that you have out-of-date flash contents on a switch card, follow this procedure to reload flash on that card.

Step 2   Connect to the NP and log in as root.

Step 3   At the prompt, enter the following command to shut down LynxOS:

Step 4   The following display appears (if the display does not appear, press [Return]).

**** LynxOS [rebooted by /bin/reboot] is down ****

Memory autosizing ... (32 Megabytes) ... Done
Clearing memory (32 Megabytes)... Done


NP1POST Version 0.220 Nov 23 1994


NP1 POST Summary
----------------

0 Tests Failed

Network Processor bootstrap (version 1.3: Sep 13 1993)
1 - Boot ATM switch application
2 - Begin full installation with boot from floppy disk
Boot from floppy (read-only, single-user) for an
installation from scratch
3 - List contents of hard disk root directory
4 - List contents of floppy disk root directory
5 - Boot system single-user
6 - Escape to full set of bootstrap options
Allows specification of drive, application, and boot options
7 - Extended help
Give somewhat more information about options
Option>

Step 5   At the menu's Option prompt, enter 6:

Option> 6

Step 6   The system displays the following message. Enter the string shown below at the Boot: prompt to load the system monitor, which you will use to load flash into the switch card. Note that the 0 in (sd0b) is a zero.

Network Processor bootstrap (version 1.3: Sep 13 1993)
Enter "help" for documentation on extended bootstrap options
Default: (sd0a)lynx.os
Boot: (sd0b)diag/sys_np1.aout

Step 7   When the system monitor finishes loading, an identifying message and a prompt appears, as shown below.

Step 8   To load flash into the switch card, enter one of the following commands. The first is for the switch card in slot A, the second for slot B. (Again, the 0 in (sd0b) is a zero.)

The words Erasing and Loading, and the dots that show system activity after those words, appear only for the secondary switch. The process takes about 2 minutes.

Step 9   Next, you will encounter one of the following:

System will boot in 5 seconds: hit <RETURN> to interrupt.

This prompt is repeated once a second, giving you more than one opportunity to press the [Return] key and prevent a reboot. When you press [Return], the boot menu appears:

Network Processor bootstrap (version 1.3: Sep 13 1993)
1 - Boot ATM switch application
2 - Begin full installation with boot from floppy disk
Boot from floppy (read-only, single-user) for an
installation from scratch
3 - List contents of hard disk root directory
4 - List contents of floppy disk root directory
5 - Boot system single-user
6 - Escape to full set of bootstrap options
Allows specification of drive, application, and boot options
7 - Extended help
Give somewhat more information about options
Option>

Step 10   Once flash is loaded, you must reboot the system to initiate operation with the new flash, as follows:

Step 11   Repeat the "Verifying Flash " procedure at the beginning of this appendix. If the card still has an incorrect flash checksum, contact your customer support representative.

Posted: Thu Jan 23 21:00:00 PST 2003
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