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Table 2–6 VMB Program /R5:<flag> Values
Bit
Hex Value
Function
Action
0
1
Conversational
boot
Returns to the SYSBOOT> prompt.
1
2
Debug
Maps the XDELTA program into the system
page table.
2
4
Initial
breakpoint
Operating system issues a breakpoint after
turning on memory management.
3
8
Secondary boot
Boots from boot block specified in /R4:n.
5
20
Bootstrap
breakpoint
Transfers control to the XDELTA program.
8
100
Solicit file name
VMB issues a prompt for the secondary boot
procedure.
9
200
Halt before
transfer
VMB executes a halt before transferring
control to the secondary bootstrap procedure.
31:28
x0000000
Top-level system
boot
Specifies the top-level directory number for
a system disk with multiple system roots,
where x = a hex value from 0 to F.
2.8.2 CLEAR
CLEAR BOOT deletes a boot-spec. CLEAR ERRORS clears the error frame of the
previously detected error. If you do not clear the error frame, the next error is not
recorded in the error frame. CLEAR BROKE clears the broke bit in EEPROM.
The following CLEAR syntax deletes a boot-spec:
CLEAR BOOT <name>
The following CLEAR syntax clears the error frame:
CLEAR ERRORS
The following CLEAR syntax clears the broke bit ID in EEPROM:
CLEAR BROKE[/PATH=path-number]
Table 2–7 describes the /PATH=path-number qualifier.
Table 2–7 Qualifier for CLEAR
Qualifier
Function
/PATH=path-number
Specifies the zone and slot number of the module to clear. The
path-number format is zss, where:
z is the zone ID (A or B).
ss is the slot number (0 to 2, 10 to 17, 20 to 27) of an
adapter connecting to a DSSI device.
CLEAR BROKE clears the module ID EEPROM in the zone that is running.
2–10 Cabinet and Component Descriptions