Obtain Recovery Information From Db-9 Serial Port; Recovering Firmware Image - Dell EMC PowerEdge VRTX User Manual

– Verify that you have AC present to at least one power supply.
– Verify that the CMC card is seated properly. You can release or pull the ejector handle, remove the CMC, reinstall the CMC
making sure that the board is inserted all the way and the latch closes correctly.
• Lower-left LED — This LED is multi-colored. When CMC is active and running, and there are no problems, the bottom LED is
blue. If it is amber, a fault is detected. The fault may be caused by any of the following three events:
– A core failure. In this case, the CMC board must be replaced.
– A self-test failure. In this case, the CMC board must be replaced.
– An image corruption. In this case, upload the CMC firmware image to recover the CMC.
NOTE: A normal CMC boot or reset takes over a minute to fully boot into its operating system and be available for
login. The blue LED is enabled on the active CMC. In a redundant, two-CMC configuration, only the upper-right green
LED is enabled on the standby CMC.

Obtain Recovery Information from DB-9 Serial Port

If the bottom LED is amber, recovery information is available from the DB-9 serial port located on the front of CMC.
To obtain recovery information:
1. Install a NULL modem cable between a CMC system and a client system.
2. Open a terminal emulator of your choice (such as HyperTerminal or Minicom). Enter the following specification when prompted:
8 bits, no parity, no flow control, baud rate 115200.
3. Press the <Enter> key.
If a recovery prompt appears, additional information is available. The prompt indicates 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 CMC. CMC is bad and must be returned
to Dell.
• If the prompt indicates Bad FW Images, complete tasks in

Recovering Firmware Image

CMC enters recover mode when a normal CMC operating 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, vrtx_cmc.bin. 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
recover ping 192.168.0.100
recover fwupdate -g -a 192.168.0.100
NOTE: Connect the network cable to the left most RJ45.
NOTE: In recover mode, you cannot ping CMC normally because there is no active network stack. The recover ping
<TFTP server IP> command allows you to ping to the TFTP server to verify the LAN connection. You may need to
use the recover reset command after setniccfg on some systems.
Recovering Firmware Image.
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