Specifications

A-4
Cisco MGX 8850 (PXM45) and MGX 8950 Software Configuration Guide
Release 3, Part Number 78-14788-01 Rev. C0, January 2004
Appendix A Downloading and Installing Software Upgrades
Quickstart Procedures for Software Upgrades
Non-Graceful PXM45 Boot Upgrades
Ungraceful upgrades disrupt all switch traffic and are usually used in lab installations where the use of
standalone cards provides no opportunity for a graceful upgrade. The quickstart procedure is provided
as an overview and as a quick reference for those who have already performed ungraceful upgrades on
the switch.
Note Avoid making configuration changes while upgrading PXM45 software. Configuration changes can be
lost when the PXM45 is reset during the upgrade.
Step 7
username
password
Establish a CLI session with the active PXM45 card (which is the
non-upgraded card) using the CP port on the UI-S3 back card and
a user name with CISCO_GP privileges.
Step 8
switchcc
y
Switch the roles of the active and standby cards so you can
upgrade the non-upgraded card in standby mode.
Step 9
sh
sysBackupBoot
<Return> (2.0.11 and earlier)
Change to the PXM45 backup boot mode.
Note The software versions 2.0.11 and earlier require you to
press Return during the reboot sequence to enter backup
boot mode.
See the “Changing to PXM45 Backup Boot Mode” section in
Appendix B, “PXM45 Backup Boot Procedures.”.
Step 10
sysPxmRemove At the backup boot prompt, enter the sysPxmRemove command.
This step prevents the active card from resetting the standby card
while you are working with it.
Step 11
sysFlashBootBurn “Filename”
reboot
username
password
dspcd
Burn the boot code. Remember to enter quotation marks before
and after the boot software filename. For example:
sysFlashBootBurn "C:FW/pxm45_003.000.000.000_bt.fw"
See the “Upgrading PXM45 Boot Software” section, which
appears later in this appendix.
Both active and standby cards should now be upgraded. The card
that was active before the upgrade is now operating in standby
mode.
Command Purpose
Command Purpose
Step 1
ftp Copy the boot and runtime files you want to use to the switch.
See the “Copying Software Files to the Switch” section, which
appears later in this appendix.
Step 2
username
password
Establish a CLI session with the active PXM45 card using the CP
port on the UI-S3 back card and a user name with CISCO_GP
privileges.