User guide

Note
Do not change the settings of the environment variables without
understanding the implications of the changes.
Table 3–2 lists the environment variables with descriptions.
Table 3–2 Environment Variable Summary
Variable Description
AUTO_ACTION Defines the action of the console following an error, halt, or
power-up.
BOOT_DEV Specifies the device list to be used by the last, or currently in
progress, bootstrap attempt.
BOOT_FILE Specifies the file name to be used when a bootstrap requires
a file name, when the bootstrap is not the result of a boot
command, or when no file name is specified with the boot
command.
BOOT_OSFLAGS Specifies arguments to be passed to system software when
the bootstrap is not the result of a boot command or when no
arguments are specified with the boot command.
BOOTDEF_DEV Specifies the device list from which bootstrapping is to be
attempted when no path is specified with the boot command.
BOOTED_DEV Specifies devices to be used by the last or currently in progress
bootstrap attempt.
BOOTED_FILE Specifies the file name to be used by the last or currently in
progress bootstrap attempt.
BOOTED_OSFLAGS Specifies arguments to be passed to system software during the
last or currently in progress bootstrap attempt.
CHAR_SET Specifies current console terminal character-set encoding.
CONSOLE Specifies whether console input and output are to use the
console serial line or a graphics console, if present.
D_BELL Specifies whether the bell is to sound on error.
D_CLEANUP Specifies whether cleanup code is to be executed at the end of
diagnostics.
D_COMPLETE Specifies whether a diagnostic completion message is to be
displayed.
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3–4 Operating the Digital Alpha VME 4 Computer