Owner`s manual

Table F–1 (Cont.): R5 Bit Functions for VMS
Bit Function
6 Image header. The transfer address of the secondary loader im-
age comes from the image header for that file. If this flag is not set, con-
trol shifts to the first byte of the secondary loader.
8 File name. VMB prompts for the name of a secondary loader.
9 Halt before transfer. VMB executes a HALT instruction before transferring con-
trol to the secondary loader.
13 No effect, since console program tests memory.
15 Reserved for the VAX Diagnostic Supervisor.
16 Do not discard CRD pages.
31:28 Specifies the top-level directory number for system disks.
Table F–2: R5 Bit Functions for ULTRIX
Bit Function
0 Forces ULTRIXBOOT to prompt the user for an image name (the default is VMU-
NIX).
1 Boots the ULTRIX kernel image in single-user mode.
3 Must be set, and R4 must be zero.
16 Must be set.
F–2 VAX 6000 Series Owner’s Manual