Boot_File; Boot_Osflags - Compaq ES40CSLP Installation, User & Service Manual

Operation
Example:
In this example, two boot devices are specified. The system will try booting from dkb0 and, if
unsuccessful, will boot from dka0.
P00>>> set bootdef_dev dkb0, dka0
______________________________ Note ___________________________
When you set the bootdef_dev environment variable, it is recommended that you
set the operating system boot parameters as well, using the set boot_osflags
command.
______________________________________________________________

3.5.2 boot_file

The boot_file environment variable specifies the default file name to be used for booting when
no file name is specified by the boot command.
The syntax is:
set boot_file filename
Example:
In this example, a boot file is specified for booting OpenVMS from the InfoServer. APB_0712
is the file name of the APB program used for the initial system load (ISL) boot program.
P00>>> set boot_file apb_0712

3.5.3 boot_osflags

The boot_osflags environment variable sets the default boot flags and, for OpenVMS, a root
number.
Boot flags contain information used by the operating system to determine some aspects of a
system bootstrap. Under normal circumstances, you can use the default boot flag settings.
To change the boot flags for the current boot only, use the flags_value argument with the boot
command.
The syntax is:
set boot_osflags flags_value
The flags_value argument is specific to the operating system.
Tru64 UNIX Systems
Tru64 UNIX operating systems take a single ASCII character as the flags_value argument.
a Load operating system software from the specified boot device (autoboot). Boot to multiuser
mode.
i Prompt for the name of a file to load and other options (boot interactively). Boot to single-user
mode.
s
Stop in single-user mode. Boots /vmunix to single-user mode and stops at the # (root) prompt.
D Full dump; implies "s" as well. By default, if Tru64 UNIX crashes, it completes a partial
memory dump. Specifying "D" forces a full dump at system crash.
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