The Boot Monitor is firmware code in the terminal's boot PROM. The Boot Monitor performs many functions automatically and provides interactive access to Boot Monitor functions and to configuration information stored in NVRAM (non-volatile RAM).
Automatic Boot Monitor Functions
The Boot Monitor automatically:
You can disable these tests using the boot-test-ram parameter, but this is not recommended.
The Boot Monitor ex command displays an Extended Tests menu, which lists the tests available for each terminal. (See Table 11-2 for a list of all the Boot Monitor commands.) NCD Technical Support may ask you to run tests if the results are needed for terminal troubleshooting.
The Boot Monitor's output during terminal booting includes the results of the tests.
Keyboard Controller and Supported Keyboards
The Boot Monitor supports the following keyboard types:
A host running BOOTP/DHCP and configured with information about the terminal may respond with the terminal's IP address. Depending on the protocol implementation and the information in the host's database, DHCP/BOOTP can return other information as well. For a complete list of supported DHCP/BOOTP options, see Chapter 3, Booting-Address Discovery.
Instead of using network protocols, you can set network addresses in the terminal's NVRAM. Addresses can be saved in NVRAM by using remote configuration files, terminal configuration menus, TELNET, the Boot Monitor Setup menus, or the NVRAM utility. Boot Monitor Setup menus are described in "Using Boot Monitor Setup Menus to Configure Terminals", and the NVRAM utility is described in "Using the NVRAM Utility to Configure Terminals". The other configuration methods are described in Chapter 6, Terminal Configuration Methods; Chapter 9, Using Configuration Menus; and the NCDware System Administrator's Guide for UNIX Systems.
X Server Downloading
To improve the reliability of downloaded files, the Boot Monitor generates UDP checksums for network packages that it transmits and verifies.
Display Blanking
The Boot Monitor blanks the monitor's display automatically after 10 minutes of idleness to avoid a burn-in effect.
Interactive Boot Monitor Functions
The interactive components of the Boot Monitor are:
The interactive components are described in following sections.