Boot Command - Digital Equipment AlphaStation 500 Series User Information

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:
boot [-file < filename >] [-flags < longword >[,< longword >]]
[-protocols < enet_protocol >] [-halt] [< boot_device >]
where:
Command Option
-file < filename >
-flags
< longword >[,< longword >]
-protocols
< enet_protocol >
-halt
< boot_device >
Description
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.
Specifies additional information for the operating system.
For systems with OpenVMS, root number and boot flags
are specified here. For Digital UNIX systems, the
following flag parameters may be used:
i = interactive boot
s = boot to single user
a = autoboot to multi-user
Use the set_boot_osflags command to set an
environment variable that specifies a default boot flag
value.
Specifies the Ethernet protocol(s) that will be used for a
network boot. Values may be mop or bootp.
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.
Specifies a device path or list of devices that the
firmware will attempt to boot. Use the
_ _
dev command to set an environment
set bootdef
variable that specifies a default boot device.
AlphaStation 500 Series User Information A-11
Console Commands