Compaq AlphaServer GS60E Installation Manual page 93

Example 8-6 shows the OpenVMS Alpha operating system as the factory
installed software. Had the Tru64 UNIX operating system been installed, slight
variations in the output show would have occurred.
Enter the show bootdef_dev command to see what disk holds the
operating system software.
Enter the show boot_osflags command to see what flags have been set. If
the flag set is a 0 and the operating system is OpenVMS, the operating
system will come up assuming flags of 0,0. If the flag is an a and the
operating system is Tru64 UNIX, the operating system will come up in
multiuser mode. See the AlphaServer GS60E Operations Manual for a
complete discussion of booting.
Enter the boot command.
After booting information messages are given, the operating system banner
appears.
Diagnostics and Utilities 8-19