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Annotation of researchv10dc/man/manb/reboot.2v, revision 1.1

1.1     ! root        1: .TH REBOOT 2V VAX/11
        !             2: .UC 4
        !             3: .SH NAME
        !             4: reboot \- reboot system or halt processor
        !             5: .SH SYNOPSIS
        !             6: .nf
        !             7: .B #include <sys/reboot.h>
        !             8: .PP
        !             9: .B reboot(howto)
        !            10: .B int howto;
        !            11: .fi
        !            12: .SH DESCRIPTION
        !            13: .I Reboot
        !            14: is used to cause a system reboot, and is invoked automatically
        !            15: in the event of unrecoverable system failures.
        !            16: .I Howto
        !            17: is a mask of options passed to the bootstrap program;
        !            18: some of the information in
        !            19: .I howto
        !            20: is interpreted by this program, and the information is further
        !            21: passed to the initialization process
        !            22: .IR init (8)
        !            23: in the new system.
        !            24: When none of these options (e.g. RB_AUTOBOOT) is given, the system is rebooted
        !            25: from file \*(lqvmunix\*(rq in the root file system of unit 0
        !            26: of the drive with the same disk controller as the current root file system.
        !            27: An automatic consistency check of the disks is then normally performed.
        !            28: .PP
        !            29: The bits of
        !            30: .I howto
        !            31: are:
        !            32: .TP
        !            33: RB_HALT
        !            34: the processor is simply halted; no reboot takes place.
        !            35: This should be used with caution.
        !            36: .TP
        !            37: RB_ASKNAME
        !            38: Interpreted by the bootstrap program itself, causing it to
        !            39: inquire as to what file should be booted.  Normally, the system is
        !            40: booted from the file \*(lqxx(0,0)vmunix\*(rq without asking, where
        !            41: .I xx
        !            42: is determined by a code in register
        !            43: .I r10
        !            44: (which is known as
        !            45: .I devtype)
        !            46: at entry to the bootstrap program.  The code corresponds to the
        !            47: major device number of the root file system, i.e. \*(lqmajor(rootdev)\*(rq.
        !            48: Currently, the following values of
        !            49: .I devtype
        !            50: are understood:
        !            51: .RS
        !            52: .br
        !            53: .ns
        !            54: .IP
        !            55: .nf
        !            56: 0      hp      rm03/rm05/rp06 massbus disk
        !            57: 1      --      unused
        !            58: 2      up      emulex sc21 unibus controller; ampex 9300 disks
        !            59: 3      rk      rk07 unibus disks
        !            60: .fi
        !            61: .RE
        !            62: .IP
        !            63: Thus if
        !            64: .I r10
        !            65: contained a 2, the system
        !            66: .RS
        !            67: .IP
        !            68: .B up(0,0)vmunix.
        !            69: .RE
        !            70: .IP
        !            71: would be booted.
        !            72: .TP
        !            73: RB_SINGLE
        !            74: Normally, the reboot procedure involves an automatic disk consistency
        !            75: check and then multi-user operations.  This prevents the consistency
        !            76: check, rather simply booting the system with a single-user shell on
        !            77: the console, from the file system specified by
        !            78: .I r10.
        !            79: .SH "SEE ALSO"
        !            80: crash(8), halt(8), init(8), reboot(8)
        !            81: .SH BUGS

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