Nortel Networks BM450 Power on self test, Viewing the Post log file, Hardware reset functions

Chapter 3 Hardware Troubleshooting 27

To restart the system from the BCM450 hardware, use the reset button as described in Hardware reset functions on page 27.

Table 6 Hardware reset functions

Function	Description	Impact
Press the Reset button on the	Shuts down and reboots the	Stops all services and restarts the
BCM450 system	BCM450 system	system.
		This operation does not affect
		configuration parameters or
		programming.
Press and hold the Reset	Immediately shuts down the	Immediately stops and restarts the
button on the BCM450 system	BCM450 system	operating system. This operation
for 5 seconds		does not affect configuration
		parameters or programming, but can
		result in data loss. Use only if the
		BCM450 system is non-responsive.

Note: When you restart the BCM450 system using the Reset button, the system will wait for 10 seconds for a user to log into the Maintenance CLI. If a user does not log in during that time period, the BCM450 will reboot to the Main OS.

Power on self test

The power on self test (POST) feature tests basic hardware functionality when the BCM450 system powers up, and stores the results in a log file. You can view the log file for hardware failures.

Viewing the POST log file

1Use Element Manager to transfer the log files to your PC. Refer to the “BCM450 Log management” chapter in the BCM450 Administration and Security Guide (NN40160-601) for information about how to transfer log files.

2View the bootloader.log file.

3Check the log file for errors. Figure 5 on page 28 shows a bootloader.log file with no errors; Figure 6 on page 28 shows a file with errors.

BCM450 Troubleshooting Guide