Management and Configuration Guide K/KA/KB.15.15

Example 118 Zeroizing the management module files from the ROM console
=> erase-all zeroize
The system will be rebooted and all management module files
except software images will be erased and zeroized. This will
take up to 60 minutes and the switch will not be usable during
that time. Continue (y/n)? y
Zeroizing with HA
When zeroization is triggered by a secure mode transition, HA handles zeroization on the AMM
and SMM automatically.
When the CLI command (erase all zeroize) is used to start zeroization, the AMM syncs with
the SMM and ensures that the SMM performs the same level of zeroization before the AMM starts
the zeroization process on itself. The AMM before the zeroization process occurs remains the
AMM, unless it takes over a minute for the AMM to boot up, in which case the prior SMM becomes
the AMM.
When zeroization is started from the ROM console, there is no synchronization performed between
the AMM and SMM, as zeroization from the ROM console is treated as a recovery facility. Each
MM has to be zeroized individually.
Restoring a flash image
The switch can lose its operating system if either the primary or secondary flash image location is
empty or contains a corrupted OS file and an operator uses the erase flash command to erase
a good OS image file from the opposite flash location.
Recovering from an empty or corrupted flash state
Use the switch's console serial port to connect to a workstation or laptop computer that has the
following:
• A terminal emulator program with Xmodem capability, such as the HyperTerminal program
included in Windows PC software.
• A copy of a good OS image file for the switch.
NOTE: The following procedure requires the use of Xmodem and copies an OS image into
primary flash only.
This procedure assumes you are using HyperTerminal as your terminal emulator. If you use a
different terminal emulator, you may need to adapt this procedure to the operation of your particular
emulator.
1. Start the terminal emulator program.
Ensure that the terminal program is configured as follows:
•• 1 stop bitBaud rate: 9600
• •No parity No flow control
• 8 Bits
2. Use the Reset button to reset the switch.
The following prompt should then appear in the terminal emulator:
Enter h or ? for help.
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Restoring a flash image 443