Selecting A Boot Device; To Select A Boot Device - Sun Microsystems Sun Fire V445 Administration Manual

If the system encounters a problem during startup (running in the normal mode), try
restarting the system in Diagnostics mode to determine the source of the problem.
Use ALOM or the OpenBoot Prompt (ok prompt) to switch to Diagnostics mode
and power cycle the system. See
For information about system diagnostics and troubleshooting, see

Selecting a Boot Device

You specify the boot device by setting an OpenBoot configuration variable called
boot-device. The default setting of this variable is disk net. With this setting,
the firmware first attempts to boot from the system hard disk drive, and if that fails,
from the on-board net0 Gigabit Ethernet interface.
Before you can select a boot device, you must complete system installation according
to the instructions in the Sun Fire V445 Server Installation Guide.
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:
"About the ok Prompt" on page 33
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Note – The serial management port on the ALOM system controller card is
preconfigured as the default system console port. For more information, see
Chapter 2.
If you want to boot from a network, you must connect the network interface to the
network. See, "Attaching a Twisted-Pair Ethernet Cable" on page

To Select a Boot Device

▼
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At the ok prompt, type:
ok setenv boot-device device-specifier
where the device-specifier is one of the following:
cdrom – Specifies the DVD-ROM drive
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disk – Specifies the system boot disk (internal disk 0 by default)
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disk0 – Specifies internal disk 0
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disk1 – Specifies internal disk 1
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"Powering Off the Server Locally" on page
Chapter 3 Powering On and Powering Off the System
62.
Chapter 8.
131.
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