HP iLO 3 User Guide

7 Troubleshooting
iLO 3 POST LED indicators
During the initial boot of iLO, the POST LED indicators flash to display the progress through the
iLO boot process. After the boot process is complete, the HB LED flashes in one second intervals.
LED indicators (1 through 6) light up after the system has booted to indicate a hardware failure.
If a hardware failure is detected, reset iLO. For the location of the LED indicators, refer to the server
documentation.
A runtime failure of iLO is indicated by HB remaining in either the On or Off state constantly. A
runtime failure of iLO can also be indicated by a repeated flashing pattern on all eight LEDs. If a
runtime error occurs, reset iLO.
The LED indicators have the following assignments:
1234567HB
Failure indicatedDescriptionPOST code (activity
completed)
LED indicator
Set up chip selects00None
Scrub done02 – Normal operation2
Subsystem startup failed if
this status remains for
Kernel launch82HB and 2
extended period of time
(~60 seconds)
The main payload is corrupt,
the kernel is running flash
recovery.
Main Error - Recovery0F5,4,3,2,1 blinking
Failure to find and load a
kernel
Kernel ErrorE0HB, 7, and 6 steady
5,4,3,2,1 blinking
Flashes as the iLO processor
executes firmware code. It
HB
does not change the value
of the lower seven LEDs.
Kernel debugging
Use the Windows Windbg kernel debugger from a local test system (usually a laptop) for a host
server that you want to debug. This method uses the iLO Virtual Serial Port feature.
NOTE: You must have PuTTY installed on your test system. You can download PuTTY from http://
www.putty.org/.
1. Using the iLO web interface on the host server with kernel issues, navigate to the
Administration→Access Settings page and configure the Serial Command Line Interface Speed
setting.
2. Configure the debug options in Windows (the boot.ini parameters for the serial connection).
Use debugport=com2, and set the baud rate to match the settings in the iLO web interface.
3. During POST, press F9 to enter the system RBSU.
4. From the main menu, disable EMS and BIOS Serial Console.
For detailed instructions, see the HP ROM-Based Setup Utility User Guide.
iLO 3 POST LED indicators 209