Compaq AlphaStation XP900, Руководство пользователя

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2-40 XP900 Console Reference
2.19.1 auto_action
Specifies the action the console takes any time the system
powers up, fails, or resets. When the setting involves autoboot,
the system boots from the default boot device specified by the
value of the bootdef_dev environment variable.
Syntax: set auto_action value
where value can be:
halt The system remains in console mode after power-up or a system
crash.
boot The system boots automatically when it is turned on and halts after
a system failure.
restart
The system boots automatically when it is turned on or after it fails.
NOTE: If a halt assertion exists, the console ignores the auto_action setting and
halts at the SRM console. See Section 1.13 for information on halt
assertion.
2.19.2 bootdef_dev
The bootdef_dev environment variable specifies one or more
devices for booting the operating system. When more than one
device is listed, the system searches in the order listed and boots
from the first device with operating system software.
Syntax: set bootdef_dev boot_device
Where boot_device is the name of the device on which the system software has
been loaded. To specify more than one device, separate the names with commas.
Enter the command show bootdef_dev to display the current default boot
device. Enter the command show device for a list of all devices in the system.