Console Commands
Boot Command
The boot command performs the following functions:
•
Initializes the processor
•
Loads a program image from the specified boot device
•
Transfers control to the loaded image
The syntax of the boot command is shown below:
boot [-file <filename>] [-flags <longword>[,<longword>]]
[-protocols <enet_protocol>] [-halt] [<boot_device>]
The boot command options are described in Table A-3.
Table A-3. SRM Boot Command Options
Command Option
Description
-file <filename>
Specifies the name of a file to load into the system. For
booting from Ethernet, this name is limited to 15
characters. Use the set boot_file command to set the
environment variable that specifies a default boot file.
-flags
<longword>[,<longword>]
Specifies additional information for the operating system.
For systems with OpenVMS, root number and boot flags
are specified here. For DEC OSF/1 systems, the
following values may be used:
i = interactive boot
s = boot to single user
a = autoboot to multiuser
Use the set boot_osflags command to set an environment
variable that specifies a default boot flag value.
-protocols <enet_protocol>
Specifies the Ethernet protocol(s) used for a network
boot. Values may be mop or bootp.
-halt
Forces the bootstrap operation to halt and invoke the
console program after the image is loaded and the page
tables and other data structures are set up.
<boot_device>
Specifies a device path or list of devices that the firmware
attempts to boot. Use the set bootdef_dev command to
set an environment variable that specifies a default boot
device.
A-7
Содержание Digital AlphaStation 400 Series
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