Dell PS-M4110 User Guide - Page 211

Recovering Firmware Image, Troubleshooting Network Problems, Resetting Administrator Password

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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, 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 at the recovery prompt, the recover reason and available subcommands 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 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. Troubleshooting Network Problems The internal CMC trace log allows you to debug CMC alerts and networking. You can access the trace log using the CMC Web interface or RACADM. See the gettracelog command section in the RACADM Command Line Reference Guide for iDRAC7 and CMC. The trace log tracks the following information: • DHCP - Traces packets sent to and received from a DHCP server. • DDNS - Traces dynamic DNS update requests and responses. • Configuration changes to the network interfaces. The trace log may also contain CMC firmware-specific error codes that are related to the internal CMC firmware, not the managed system's operating system. Resetting Administrator Password CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product. To perform management actions, a user with Administrator privileges is required. The CMC software has a user account password protection security feature that may be disabled if the administrator account password is forgotten. If the administrator account password is forgotten, it can be recovered using the PASSWORD_RSET jumper on the CMC board. The CMC board has a two-pin password reset connector as shown in the following figure. If a jumper is installed in the reset connector, the default administrator account and password is enabled and set to the default values of username: root and password: calvin. The administrator account is reset regardless if the account has been removed, or if the password was changed. NOTE: Make sure the CMC module is in a passive state before you begin. 211

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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,
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
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.
Troubleshooting Network Problems
The internal CMC trace log allows you to debug CMC alerts and networking. You can access the trace log using the
CMC Web interface or RACADM. See the
gettracelog
command section in the
RACADM Command Line Reference
Guide for iDRAC7 and CMC
.
The trace log tracks the following information:
•
DHCP — Traces packets sent to and received from a DHCP server.
•
DDNS — Traces dynamic DNS update requests and responses.
•
Configuration changes to the network interfaces.
The trace log may also contain CMC firmware-specific error codes that are related to the internal CMC firmware, not the
managed system’s operating system.
Resetting Administrator Password
CAUTION: Many repairs may only be done by a certified service technician. You should only perform
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your
warranty. Read and follow the safety instructions that came with the product.
To perform management actions, a user with
Administrator
privileges is required. The CMC software has a user account
password protection security feature that may be disabled if the administrator account password is forgotten. If the
administrator account password is forgotten, it can be recovered using the PASSWORD_RSET jumper on the CMC
board.
The CMC board has a two-pin password reset connector as shown in the following figure. If a jumper is installed in the
reset connector, the default administrator account and password is enabled and set to the default values of
username: root
and
password: calvin
. The administrator account is reset regardless if the account has
been removed, or if the password was changed.
NOTE:
Make sure the CMC module is in a passive state before you begin.
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