Booting
4-7
•
M is the system root of the boot device in hex which is dependent on
the system configuration. This value can be between 0 and F. This pa-
rameter is deposited into bits 28–31 of General Purpose Register R5 for
VAX 7000 systems. For DEC 7000 systems, it is deposited using the
console environment variable booted_osflags.
•
PPPP is the hex value for the Alpha primary boot program (APB) as
listed in Appendix B. It is also used with the virtual memory boot pro-
gram (VMB) options as listed in Appendix B. This parameter is depos-
ited into bits 0–27 of General Purpose Register R5.
•
QQ is part of the device name indicating the device type as shown in
Table 4-3.
Table 4-3
Device Names
VAX
7000
NNNN is the shadow set value which is dependent on the system
configuration, and is used with OpenVMS VAX. This optional pa-
rameter (up to 4 hex digits) is deposited into bits 16–31 of General
Purpose Register R3. This parameter is not used on DEC 7000
systems.
Device Type
Name
Device Adapter
Disk (MSCP)
duRRSSSS.A.B.C.D
CIXCD, KDM70,
KFMSA
Disk (SCSI), CD-ROM
1
dkRRSSSS.A.B.C.D
KZMSA
InfoServer (Ethernet)
2
exRRSSSS.A.B.C.D
DEMNA
InfoServer (FDDI)
2
fxRRSSSS.A.B.C.D
DEMFA
1For DEC 7000 systems only.
2For VAX 7000 systems only.