Specifications

B-5
Cisco MGX 8850 (PXM45) and MGX 8950 Software Configuration Guide
Release 3, Part Number 78-14788-01 Rev. C0, January 2004
Appendix B PXM45 Backup Boot Procedures
Clearing the Switch Configuration
Step 1 If you are copying software files to the switch, refer to the Release Notes for Cisco MGX 8850 and
MGX 8830 Software Version 3 (PXM45/B and PXM1E) or the Release Notes for Cisco MGX 8950
Software Version 3 to locate a server from which you can download the files.
Step 2 Using a workstation with FTP client software, establish connections to the server where the files are
stored and to the switch.
The procedure you use for transferring the files depends on the FTP client software you are using. When
initiating the FTP connection, remember the following:
• Select the switch by entering its IP address.
• When prompted for a username and password, the username for backup boot mode access is cisco
and the password is supplied with your switch.
Step 3 For all transfers to or from the switch, select binary mode for the file transfer. The files are located in
the following directories:
• PXM45 and AXSM files are in the directory C:FW.
• RPM-PR files are in the directory E:RPM.
• Log files are in the directory C:LOG.
• Configuration files are in the directory C:CNF.
Step 4 To verify that files have been transferred to the switch, use the directory commands listed in the
“Browsing the File System in Backup Boot Mode” section which appears earlier in this appendix.
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 PXM45 Hard Disk
If the switch troubleshooting process indicates that the PXM45 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 PXM45 that connects to the affected hard disk as described in the
“Changing to PXM45 Backup Boot Mode” section, which appears earlier in this chapter.
Step 2 Start a disk format by entering the diskFormat command as shown in the following example:
pxm45bkup>diskFormat "C:"
IDE: format in progress. This takes a while ........
When the format is complete, a message similar to the one in the following example appears:
Disk format complete. Reboot the system .....
"C:" formatted.
value = 0 = 0x0
Step 3 Enter the reboot command to restart the card.