DEC DECstation 5000 Model 100 Series Hardware Operator's Manual page 174

To choose operating mode, boot (start) the operating system in
either of these ways:
Type boot at the console prompt and press Return, or
Set the worksystem software to boot the operating system
automatically.
For either of these procedures to work, you must set the
boot environment variable for your workstation and set the
haltaction environment variable to b. Until you set these
variables, you must use the boot command. This chapter
explains how to use the boot command and how to set the
environment variables.
When you start in operating mode, you must supply your
worksystem software user name and password.
Your worksystem software manuals explain how to use
operating mode.
11–4 Using the Console Commands