User's Manual

36 Configuring the iDRAC
You can use the CMC Web interface to update the firmware only when the
CMC detects that the iDRAC firmware is corrupted, as could occur if the
iDRAC firmware update progress is interrupted before it completes. See
"Recovering iDRAC Firmware Using the CMC" on page 86.
Using the DOS Update Utility
To update the iDRAC firmware using the DOS update utility, boot the
managed server to DOS, and execute the idrac16d command. The syntax for
the command is:
idrac16d [-f] [-i=<
filename >] [-l=< logfile >]
When executed with no options, the idrac16d command updates the iDRAC
firmware using the firmware image file
firmimg.imc in the current directory.
The options are as follows:
-f — forces the update. The -f option can be used to downgrade the
firmware to an earlier image.
-i=<
filename > — specifies the filename image that contains the
firmware image. This option is required if the firmware filename has been
changed from the default name firmimg.imc.
-l=<
logfile > — logs output from the update activity. This option is used
for debugging.
NOTICE: If you enter incorrectly arguments to the idrac16d command, or supply
the
-h option, you may notice an additional option, -nopresconfig in the
usage output. This option is used to update the firmware without preserving any
configuration information. You should not use this option, since it deletes all of your
existing iDRAC configuration information such as IP addresses, users, and
passwords.
Verifying the Digital Signature
A digital signature is used to authenticate the identity of the signer of a file
and to certify that the original content of the file has not been modified since
it was signed.