B-5
Cisco MGX 8850 (PXM1E/PXM45), Cisco MGX 8950, Cisco MGX 8830, and Cisco MGX 8880 Configuration Guide
Release 5.0.10, OL-3845-01 Rev. B0, August 16, 2004
Appendix B PXM Backup Boot Procedures
Clearing the Switch Configuration
Clearing the Switch Configuration
To clear the entire switch configuration, use the sysClrallcnf command. This command clears all the
provisioning data and most of the general switch configuration parameters, such as the switch name and
SNMP configuration.
Initializing the PXM Hard Disk
If the switch troubleshooting process indicates that the PXM hard disk is not operating correctly, you
can try to correct the problem by re initializing the hard disk as described in the following procedure.
Step 1
Establish a backup boot session on the PXM that connects to the affected hard disk as described in
the“
Changing to PXM Backup Boot Mode
” section earlier in this chapter.
Step 2
Start a disk format by entering the diskFormat command as shown in the following example:
pxm1ebkup>diskFormat "C:"
IDE: format in progress. This takes a while ........
When the format is complete, a message similar to the following example appears:
Disk format complete. Reboot the system .....
"C:" formatted.
value = 0 = 0x0
Step 3
Enter the reboot 2 command to restart the card.
Step 4
When the stop auto-boot prompt appears, press return to enter backup boot mode. The following
example shows the prompt and the message that appears when a newly formatted hard disk is detected.
Press Return key to stop auto-boot...2
To avoid reset from the Active card, use sysPxmRemove()
Use sysFWLoad() for FW download from active PXM.
********************************************************
* Disk does not have valid configuration. *
* Please run sysDiskCfgCreate(), and then reboot. *
********************************************************
pxm1ebkup>
Step 5
If the PXM you restarted is the standby card for an active PXM card in the same switch, enter the
sysPxmRemove command to prevent the active card from restarting the card you are working on.
Step 6
Enter the sysDiskCfgCreate command to set up the PXM hard disk.
Step 7
If this is a standalone PXM card, copy the runtime and boot software files to the switch as described in
the “
Transferring Software Files to and from the Switch
” section earlier in this appendix.
Step 8
Enter the reboot command to restart the card.
Step 9
If this is a standalone PXM card, set up the switch as if it were a new switch as described in the
“
” section in
Chapter 2, “Configuring General Switch Features.”
Step 10
If this is a standby PXM card, the active PXM card will update the newly-formatted hard disk with the
active configuration. When the update is complete, the card will enter standby mode and the switch
prompts you for a user name and password. Enter the user name and password to log in. After login, the
switch prompt should include the letter s, indicating the card is operating in standby mode. For example:
pop20one.8.PXM.s >
