Unable to Log In to the Chassis Management Module on Intel® Modular Server Systems


Product Information & Documentation



The reset button on the CMM is intended for rebooting and does not reset to factory defaults.

How do I work around not being able to log in?

If you have received a replacement midplane through warranty, need to change a forgotten IP address, reset to factory defaults, or reload corrupted firmware:

  1. Connect a straight-through serial cable to the CMM serial port, and set your terminal program (like Hyperterminal) to:

    • Baud rate: 115200
    • Data Bits: 8
    • Parity: None
    • Stop Bits: 1
    • Flow Control: None
  2. Next, remove and reinsert the CMM. Press Enter during boot to bring up the EBF> prompt.

To disable DHCP and reset the IP address to default, type:

CMM EBF> set net ext dhcp off
CMM EBF> set net ext ip
CMM EBF> set net ext netmask
CMM EBF> set net ext gateway

To reset the admin password, type:

CMM EBF> set admin password [password]

Type exit to reboot the CMM.

If you see an error during the EBF boot similar to:

SD Card not present or failed to initialize
Unable to obtain flash device parameters

You may need to reset the CMM.

MFSYS25 Emergency CMM FW Recovery (PDF) icon
If the operational firmware image of the Intel® Modular System MFSYS25 Management Module (CMM) is corrupted, the CMM is unable to boot to Linux*. The CMM contains Emergency Boot Firmware (EBF) that allows the administrator to update the operational image regardless of the state of the current image. The following process uploads a new operational code image to the CMM.


File name: MFSYS25_CMM_Recovery.pdf
Size: 25 KB
Date: December 2015

Note: PDF files require Adobe Acrobat Reader*.


If the reset fails, try reformatting the SD card. At the CMM EBF prompt, type:
set manufacture on
sd format

and try the CMM recovery again.

If you see the boot process, but cannot get the EBF prompt, note that the serial cable or USB to serial cable must be a fully populated straight-through cable. Specifically, it must allow the host PC to assert the CTS pin on the CMM.