Booting With A Dhcp Server - Sun Microsystems Netra CT 820 Administration Manual

In the event of a distributed management card fault, a node board hot swap, power
cycle, reboot or reset will cause the OpenBoot PROM firmware to default to the
value set in the boot-device variable.

Booting with a DHCP Server

You can configure Netra CT node boards to boot over DHCP. This process includes
setting the node board boot device for DHCP, forming the node board DHCP client
ID, and configuring the DHCP server.
On the Netra CT system, the DHCP client ID is a combination of the system's
midplane Sun part number (7 bytes), the system's midplane Sun serial number (6
bytes), and the board's geographical address (slot number) (2 bytes). The parts are
separated by a : (colon).
M To Configure a Node Board to Boot Over DHCP
1. Log in to the distributed management card.
2. Set the boot device for the board to dhcp with the setfru command:
setfru slot fru_instance Boot_Devices network_devicename:dhcp
hostname cli>
where fru_instance is the slot number of the board to be configured for DHCP and
network_devicename
device to dhcp for the node board in slot 4, enter the following:
hostname cli>
setfru slot 4 Boot_Devices net:dhcp
3. Get the Netra CT system part number and the system serial number with the
showfru command:
hostname cli>
showfru midplane 1 Sun_Part_No
...
hostname cli>
showfru midplane 1 Sun_Serial_No
...
is a path or alias to a network device. For example, to set the boot
Chapter 3 Administering Your System 53