DEC 4000 600 series, Руководство пользователя, Страница: 82 / 242

Before You Begin
Before You Begin
Preliminary
Actions Before changing any environment variables, you should have
done the following:
• Placed your system at the console prompt.
If your system is not displaying the >>> prompt, refer to
Invoke Console Mode in Chapter 1.
• Determined which variables, if any, you wish to set.
Each of the following sections in this chapter describes a
particular environment variable. For information about why
you might want to set a variable, refer to the section that
describes that variable.
• Read a summary of the
set
command and the environment
variables in set in Chapter 3.
• Read Chapter 2 and the rest of this chapter.
Changing the Default Startup Action (auto_action)
Default Startup
Actions
The setting of the auto_action environment variable determines
how your system reacts when you power up the system, or press
the Reset button, or when the system crashes. There are three
possible settings:
• halt
• boot
• restart
The default setting is halt.
4–4 Setting Environment Variables