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Annotation of 43BSD/sys/h/reboot.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1982, 1986 Regents of the University of California.
        !             3:  * All rights reserved.  The Berkeley software License Agreement
        !             4:  * specifies the terms and conditions for redistribution.
        !             5:  *
        !             6:  *     @(#)reboot.h    7.1 (Berkeley) 6/4/86
        !             7:  */
        !             8: 
        !             9: /*
        !            10:  * Arguments to reboot system call.
        !            11:  * These are passed to boot program in r11,
        !            12:  * and on to init.
        !            13:  */
        !            14: #define        RB_AUTOBOOT     0       /* flags for system auto-booting itself */
        !            15: 
        !            16: #define        RB_ASKNAME      0x01    /* ask for file name to reboot from */
        !            17: #define        RB_SINGLE       0x02    /* reboot to single user only */
        !            18: #define        RB_NOSYNC       0x04    /* dont sync before reboot */
        !            19: #define        RB_HALT         0x08    /* don't reboot, just halt */
        !            20: #define        RB_INITNAME     0x10    /* name given for /etc/init */
        !            21: #define        RB_DFLTROOT     0x20    /* use compiled-in rootdev */
        !            22: 
        !            23: #define        RB_PANIC        0       /* reboot due to panic */
        !            24: #define        RB_BOOT         1       /* reboot due to boot() */
        !            25: 
        !            26: /*
        !            27:  * Constants for converting boot-style device number to type,
        !            28:  * adaptor (uba, mba, etc), unit number and partition number.
        !            29:  * Type (== major device number) is in the low byte
        !            30:  * for backward compatibility.  Except for that of the "magic
        !            31:  * number", each mask applies to the shifted value.
        !            32:  */
        !            33: #define        B_ADAPTORSHIFT  24
        !            34: #define        B_ADAPTORMASK   0x0f
        !            35: #define B_UNITSHIFT    16
        !            36: #define B_UNITMASK     0xff
        !            37: #define B_PARTITIONSHIFT 8
        !            38: #define B_PARTITIONMASK        0xff
        !            39: #define        B_TYPESHIFT     0
        !            40: #define        B_TYPEMASK      0xff
        !            41: #define        B_MAGICMASK     0xf0000000
        !            42: #define        B_DEVMAGIC      0xa0000000

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