Installation guide

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
VA
X
700
0
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 Genera
l
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
1
For DEC 7000 systems only.
2
For VAX 7000 systems only.