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Booting and Installing an Operating System
3-7
OpenVMS Systems
OpenVMS systems require an ordered pair as the flags_value argument:
root_number and boot_flags.
root_number
Directory number of the system disk on which OpenVMS files
are located. For example:
root_number
Root Directory
0 (default)
[SYS0.SYSEXE]
1
[SYS1.SYSEXE]
2
[SYS2.SYSEXE]
3
[SYS3.SYSEXE]
boot_flags
The hexadecimal value of the bit number or numbers set. To
specify multiple boot flags, add the flag values (logical OR).
For example, the flag value 10080 executes both the 80 and
10000 flag settings. See Table 3–1.
Table 3–1 OpenVMS Boot Flag Settings
Flags_Value
Bit Number
Meaning
1
0
Bootstrap conversationally (enables you to
modify SYSGEN parameters in SYSBOOT).
2
1
Map XDELTA to a running system.
4
2
Stop at initial system breakpoint.
8
3
Perform diagnostic bootstrap.
10
4
Stop at the bootstrap breakpoints.
20
5
Omit header from secondary bootstrap image.
80
7
Prompt for the name of the secondary bootstrap
file.
100
8
Halt before secondary bootstrap.
10000
16
Display debug messages during booting.
20000
17
Display user messages during booting.
Содержание AlphaServer ES40
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