Compaq AlphaServer ES45 1B - Page 87

Booting and Installing an Operating System 3-5
3.1.3 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
P00>>> set boot_file “”
NOTE: This command clears the boot file setting and sets the string to empty.