Using The Boot Alternate Cisco Imc Image Header (J39, Pins 1 - 2) - Cisco UCS C240 M5 Installation And Service Manual

Maintaining the Server
Note If you do not remove the jumper, the password is cleared every time you power-cycle the
server.
Step 10 Replace the top cover, replace the server in the rack, replace power cords and any other cables, and then power on the
server by pressing the Power button.

Using the Boot Alternate Cisco IMC Image Header (J39, Pins 1 - 2)

You can use this Cisco IMC debug header to force the system to boot from an alternate Cisco IMC image.
Step 1
Shut down and remove power from the server as described in
on page 39. Disconnect power cords from all power supplies.
Step 2 Slide the server out the front of the rack far enough so that you can remove the top cover. You might have to detach
cables from the rear panel to provide clearance.
If you cannot safely view and access the component, remove the server from the
Caution
rack.
Step 3
Remove the top cover from the server as described in
Step 4 Install a two-pin jumper across J39 pins 1 and 2.
Step 5 Reinstall the top cover and reconnect AC power cords to the server. The server powers up to standby power mode,
indicated when the Power LED on the front panel is amber.
Step 6 Return the server to main power mode by pressing the Power button on the front panel. The server is in main power
mode when the Power LED is green.
Note When you next log in to Cisco IMC, you see a message similar to the following:
'Boot from alternate image' debug functionality is enabled.
CIMC will boot from alternate image on next reboot or input power
cycle.
If you do not remove the jumper, the server will boot from an alternate Cisco IMC image every time that you
Note
power cycle the server or reboot Cisco IMC.
Step 7 To remove the jumper, press the Power button to shut down the server to standby power mode, and then remove AC
power cords from the server to remove all power.
Step 8
Remove the top cover from the server.
Step 9 Remove the jumper that you installed.
Step 10 Replace the top cover, replace the server in the rack, replace power cords and any other cables, and then power on the
server by pressing the Power button.
Using the Boot Alternate Cisco IMC Image Header (J39, Pins 1 - 2)
Shutting Down and Removing Power From the Server,
Removing the Server Top Cover, on page
Cisco UCS C240 M5 Server Installation and Service Guide
41.
117