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C-34

Troubleshooting

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.

To Recover 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 Hyper-

Terminal 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 emu-

lator. 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.

2. Ensure that the terminal program is configured as follows:

3. Use the Reset button to reset the switch. The following prompt should

then appear in the terminal emulator:

Enter h or ? for help.

■ Baud rate: 9600

■ No parity

■ 8 Bits

■ 1 stop bit

■ No flow control

!Software.book Page 34 Thursday, October 10, 2002 6:10 PM

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