HP AlphaServer TS15 Owner's Manual page 141

The syntax is:
boot [-file filename] [-flags [value]] [-halt] [-protocols enet_protocol] [boot_dev]
-file filename Specifies the name of a file to load into the system. Use the set boot_file
command to set a default boot file. See Chapter 3.
NOTE: For booting from Ethernet, the filename is limited by the MOP
-flags [value] Provides additional operating system-specific boot information. In
Tru64 UNIX, specifies boot flags. In OpenVMS, specifies system root
number and boot flags. These values are passed to the operating system
for interpretation. Preset default boot flag values are 0,0. Use the set
boot_osflags command to change the default boot flag values. See
Chapter 3.
-halt Forces the bootstrap operation to halt and invoke the console program.
The console is invoked after the bootstrap image is loaded and page
tables and other data structures are set up. Console device drivers are not
shut down. Transfer control to the bootstrap image by entering the
continue command.
-protocols Specifies the Ethernet protocol to be used for the network boot. Either
enet_protocol mop (for OpenVMS) or bootp (for Tru64 UNIX) may be specified. Use
the set ew*0_protocols, ei*0_protocols, or eg*0_protocols command to
set a default network boot protocol. See Chapter 3.
boot_dev A device path or list of devices from which the console program attempts
to boot, or a saved boot specification in the form of an environment
variable. Use the set bootdef_dev command to set a default boot device.
See Chapter 3.
NOTE: Entering values for boot flags, the boot device name, or Ethernet protocol on the
boot command overrides the current default value for the current boot request,
but does not change the corresponding environment variable. For example, if
you have defined a value for boot_osflags and you specify the -flags argument on
the boot command line, the -flags argument takes precedence for that boot
session.
V3 load protocol to 15 characters. The MOP protocol is used
with OpenVMS systems.
Using Firmware 5-17