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Annotation of sys/arch/landisk/stand/mbr/mbr.8, Revision 1.1

1.1     ! nbrk        1: .\"     $OpenBSD: mbr.8,v 1.4 2007/05/31 19:20:03 jmc Exp $
        !             2: .\"
        !             3: .\" Copyright (c) 2006 Michael Shalayeff
        !             4: .\" All rights reserved.
        !             5: .\"
        !             6: .\" Permission to use, copy, modify, and distribute this software for any
        !             7: .\" purpose with or without fee is hereby granted, provided that the above
        !             8: .\" copyright notice and this permission notice appear in all copies.
        !             9: .\"
        !            10: .\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
        !            11: .\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
        !            12: .\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
        !            13: .\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
        !            14: .\" WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER IN
        !            15: .\" AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
        !            16: .\" OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
        !            17: .\"
        !            18: .Dd $Mdocdate: May 31 2007 $
        !            19: .Dt MBR 8 landisk
        !            20: .Os
        !            21: .Sh NAME
        !            22: .Nm mbr
        !            23: .Nd
        !            24: LANDISK-specific Master Boot Record
        !            25: .Sh SYNOPSIS
        !            26: .Nm
        !            27: .Sh DESCRIPTION
        !            28: The
        !            29: .Nm MBR
        !            30: program comprises only one sector (512 bytes) and includes
        !            31: a partition table, since the disk is located in the 0th sector of the disk.
        !            32: Upon receiving control from the system firmware
        !            33: .Nm
        !            34: will scan the partition table for an active partition and continue
        !            35: loading the Primary Boot Record (PBR) from the beginning of the
        !            36: partition, if found.
        !            37: .Pp
        !            38: .Nm
        !            39: is installed on the disk by
        !            40: .Xr fdisk 8 ,
        !            41: which is also used to operate the partition table.
        !            42: .Pp
        !            43: The partition table consists of four entries, only one of which may be
        !            44: marked as
        !            45: .Dq active .
        !            46: The PBR is loaded from there.
        !            47: .Sh DIAGNOSTICS
        !            48: A few messages are printed in case of errors:
        !            49: .Bl -tag -width "no_active_partitionXX"
        !            50: .It "No active partition"
        !            51: Indicates that none of the partitions are marked
        !            52: .Dq active .
        !            53: .It Read error
        !            54: An error occurred while fetching the primary boot loader.
        !            55: .It "No O/S"
        !            56: The partition table is empty.
        !            57: .El
        !            58: .Sh SEE ALSO
        !            59: .Xr boot 8 ,
        !            60: .Xr boot_landisk 8 ,
        !            61: .Xr bootxx 8 ,
        !            62: .Xr disklabel 8 ,
        !            63: .Xr fdisk 8