Setting Or Changing The Default Boot Device (Bootdef_Dev); Default Boot Device; Why Set The Default Boot Device; Your System's Current Default Boot Device - DEC 4000 600 series Owner's Manual

Setting or Changing the Default Boot Device (bootdef_dev)

Default Boot The boot device is the device from which the bootstrap system
Device software is acquired. In most cases, the default boot device has
been identified on your system as the device on which Factory
Installed Software (FIS) was loaded.
By identifying the boot device to your system, you can simplify
Why Set the
Default Boot the process of booting operating system software as follows:
Device?
•
•
Your System's To display your system's current default boot device, enter the
Current Default following:
Boot Device
>>> show bootdef_dev
The system responds with a display similar to the following:
bootdef_dev
In this example, the default boot device is dka0.
Which One If a default boot device has not been set and you do not know
Is the Boot which device is the boot device, determine your system's boot
device as follows:
Device?
•
•
Setting or Changing the Default Boot Device (bootdef_dev)
You can enter and press Return at the console prompt and
b
the system will find and boot operating system software.
You can automatically boot operating system software
by setting the default startup action to boot (using the
auto_action environment variable) in conjunction with this
variable.
Return
dka0
Display the devices connected to your system:
>>> show device
...
Beginning at the top of the list of devices that are displayed
and working downward, try booting operating system
software from each device.
Setting Environment Variables 4–7