Table 4-3: Startup And Boot Environment Variables - Compaq AlphaServer 1000A Owner's Manual

Table 4–3: Startup and Boot Environment Variables
Operating Environment
System Variable
Digital UNIX
auto_action
OpenVMS
Alpha
Digital UNIX
bus_probe_algorithm
OpenVMS
Alpha
Windows NT autoload
Windows NT countdown
Windows NT
os_type
Digital UNIX
OpenVMS
Alpha
Value Description
Boot Specifies the system default startup
Halt action. Applies only to the Digital
Restart UNIX and OpenVMS Alpha operating
systems.
New Improves bus sizing and configuration
on systems running the Digital UNIX
and Open VMS Alpha operating
systems. Failure to set this environment
variable could result in errors.
YES or NO Specifies whether the Windows NT
operating system should boot. Does not
affect the OpenVMS Alpha or Digital
UNIX operating systems. If the value is
YES, the Windows NT firmware boots
the system after the COUNTDOWN
time limit expires. If the value is NO,
the system halts at the Windows NT
firmware Boot menu.
10 seconds Specifies the time limit within which
(default value) you can stop the Windows NT operating
system from booting if AUTOLOAD is
set to YES. The time limit is specified
in seconds. When you turn on the
system or reinitialize the firmware, the
system displays the seconds remaining
before the operating system boots
automatically. To stop the system from
booting automatically, you must choose
another menu item from the Boot menu.
NT Specifies the system default operating
UNIX system setting. Depending on the value,
VMS the system either boots or restarts the
specified operating system, or halts in
the specified console. You can modify
the value from either the Windows NT
(ARC) console or Digital UNIX or
OpenVMS Alpha (SRM) console.
AlphaServer 1000A Rackmount Owner's Guide 4-21
Basic Operation