Kontron NetBootLoader - Manual (Page 20)

ID 1022-8317, Rev. 2.0
NBL Operation NetBootLoader
Page 12
2.7.6 DHCP
This command is used to obtain automatically networking parameters from either a DHCP or
BOOTP server for an Ethernet port. Its use requires the availability of one or the other of these
servers to function.
Initially the CPU module does not have a valid Ethernet interface configuration, and, therefore,
this interface is inoperable. The initial configuration must be done either manually from a serial
interface using the command NET, or, if a DHCP or BOOTP server is available, it can be done
automatically by the DHCP command.
2.7.7 FDT
This command is used to enable the creation of a flattened device tree.
The flattened device tree provides information required by certain operating systems for oper-
ation of system devices. In the case of the AM4100 and AM4101, the flattened device tree is
always generated.
2.7.8 NET
This command is used to set or display the parameters for the configuration of the specified
Ethernet port of the NetBootLoader. The Ethernet interfaces are only available after these
settings have been made.
2.7.9 PASSWD
This command is used to set the password used by the NetBootLoader for the operation of the
telnet interface. No password is required for access from the primary serial interface or for
Serial Over LAN
2.7.10 PF
This command is used to set the port parameters for the primary and secondary serial interfac-
es only for the current operator session. The next system restart will cause these settings to
revert to the default settings of: 9600 Baud, 8 bits per character, 1 stop bit, and no parity. This
is done to preclude a system lockout when restarting due to incompatible settings.
2.7.11 SCRIPT
This command permits the automatic invoking of NetBootLoader commands during boot up.
The operator issues this command with appropriate options and then restarts the system. Dur-
ing the boot operation at boot wait time expiration, the script commands will be executed.
Use of this command permits, for example, remote booting from a TFTP server.
2.7.12 SQ
This command is used to set or display the order in which images are to be booted.
The NetBootLoader provides the capability to program up to four images into the NBL Flash
memory. With this command the operator can define the order in which images may be used
when the system is booted. This provides operational flexibility as well as the possibility for the
system to compensate for a defective image.