User's Manual

Troubleshooting and Recovery 311
To obtain recovery information:
1
Install a NULL modem cable between the CMC and a client machine.
2 Open a terminal emulator of your choice (such as HyperTerminal or
Minicom). Set up: 8 bits, no parity, no flow control, baud rate 115200.
A core memory failure will display an error message every 5 seconds.
3 Press <Enter>. If a recovery prompt appears, additional information is
available. The prompt will indicate the CMC slot number and failure type.
To display failure reason and syntax for a few commands, type
recover
and then press <Enter>. Sample prompts:
recover1[self test] CMC 1 self test failure
recover2[Bad FW images] CMC2 has corrupted images
• If the prompt indicates a self test failure, there are no serviceable
components on the CMC. The CMC is bad and must returned to
Dell.
• If the prompt indicates
Bad FW Images , then follow the steps in
"Recovering the Firmware Image" on page 311 to fix the problem.
Recovering the Firmware Image
The CMC enters recover mode when a normal CMC OS boot is not possible.
In recover mode, a small subset of commands are available that allow you to
reprogram the flash devices by uploading the firmware update file,
firmimg.cmc. This is the same firmware image file used for normal firmware
updates. The recovery process displays its current activity and boots to the
CMC OS upon completion.
When you type recover and then press <Enter> at the recovery prompt,
the recover reason and available sub-commands display. An example recover
sequence may be:
recover getniccfg
recover setniccfg 192.168.0.120 255.255.255.0
192.168.0.1