6.2.3Boot_osflags

The boot_osflags environment variable sets the default boot flags and, for OpenVMS, a root number.

Boot flags contain information used by the operating system to determine some aspects of a system bootstrap. Under normal circumstances, you can use the default boot flag settings.

To change the boot flags for the current boot only, use the flags_value argument with the boot command.

The syntax is:

set boot_osflags flags_value

The flags_value argument is specific to the operating system.

Tru64 UNIX Systems

Tru64 UNIX systems take a single ASCII character as the flags_value argument.

aLoad operating system software from the specified boot device (autoboot). Boot to multiuser mode.

iPrompt for the name of a file to load and other options (boot interactively). Boot to single-user mode.

sStop in single-user mode. Boots /vmunix to single-user mode and stops at the # (root) prompt.

DFull dump; implies “s” as well. By default, if Tru64 UNIX crashes, it completes a partial memory dump. Specifying “D” forces a full dump at system crash.

6-12 AlphaServer GS80/160/320 User’s Guide

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Compaq GS80, GS160, GS320 manual Bootosflags, Set bootosflags flagsvalue