A P P E N D I X B - Selecting a Boot Device

A P P E N D I X B

Selecting a Boot Device

The boot device is specified by the setting of an OpenBoot configuration variable called boot-device. The default setting of this variable is disk net. Because of this setting, the firmware first attempts to boot from the system hard drive, and if that fails, from the on-board NET0 Gigabit Ethernet interface.

This procedure assumes that you are familiar with the OpenBoot firmware and that you know how to enter the OpenBoot environment. For more information, see the Sun SPARC Enterprise T2000 Server Administration Guide.

Note - The serial management port on the ALOM CMT card is preconfigured as the default system console port. For more information, see the Sun SPARC Enterprise T2000 Server Overview.

If you want to boot from a network, you must connect the network interface to the network.

To Select a Boot Device

At the ok prompt, type:

ok setenv boot-device device-specifier

Where the device-specifier is one of the following:

cdrom - Specifies the DVD drive

disk - Specifies the system boot disk (internal disk 0 by default)

disk0 - Specifies internal drive 0

disk1 - Specifies internal drive 1

disk2 - Specifies internal drive 2

disk3 - Specifies internal drive 3

net, net0, net1, net2, net3 - Specifies the network interfaces

full path name - Specifies the device or network interface by its full path name

Note - The Solaris OS modifies the boot-device variable to its full path name, not the alias name. If you choose a nondefault boot-device variable, the Solaris OS specifies the full device path of the boot device.

Note - You can specify the name of the program to be booted as well as the way the boot program operates. For more information, refer to the OpenBoot 4.x Command Reference Manual in the OpenBoot Collection AnswerBook for your specific Solaris OS release.

If you want to specify a network interface other than an onboard Ethernet interface as the default boot device, you can determine the full path name of each interface by typing:

ok show-devs

The show-devs command lists the system devices and displays the full path name of each PCI device.