Environment Variables Set During System Configuration - DEC 4000 AXP Service Manual

Table 6–3 Environment Variables Set During System Configuration
Variable Attributes
auto_action NV,W
bootdef_dev NV
boot_file NV,W
Key to variable attributes:
NV - Nonvolatile. The last value saved by system software or set by console commands is preserved
across system initializations, cold bootstraps, and long power outages.
W - Warm nonvolatile. The last value set by system software is preserved across warm bootstraps
and restarts.
6–30 System Configuration and Setup
Function
The action the console should take following an error
halt or powerfail. Defined values are:
BOOT—Attempt bootstrap.
HALT—Halt, enter console I/O mode.
RESTART—Attempt restart. If restart fails, try
boot.
No other values are accepted. Other values result in
an error message and variable remains unchanged.
The device or device list from which booting is to be
attempted, when no path is specified on the command
line. Set at factory to disk with Factory Installed
Software; otherwise null.
The default filename used for the primary bootstrap
when no filename is specified by the
The default value when the system is shipped is NULL.
boot command.
(continued on next page)