Operating instructions

boot [-file filename] [-flags [value]] [-halt] [-protocols enet_protocol]
[boot_dev]
-file file-
Specifies the name of a file to load into the system. Use the set
name
boot_file command to set a default boot file. See Chapter 4.
NOTE: For booting from Ethernet, the filename is limited by
the MOP V3 load protocol to 15 characters. The MOP
protocol is used with OpenVMS systems.
-flags
Provides additional operating system-specific boot information.
[value]
In Tru64 UNIX, specifies boot flags. In OpenVMS, specifies sys-
tem 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 4.
-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.
enet_protocol
Either 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 proto-
col. See Chapter 4.
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 4.
NOTE: Entering values for boot flags, the boot device name, or Ethernet proto-
col on the boot command overrides the current default value for the
current boot request, but does not change the corresponding environ-
ment variable. For example, if you have defined a value for
boot_osflags and you specify the -flags argument on the boot com-
mand line, the -flags argument takes precedence for that boot session.
5-22 DS25 Owner’s Guide