Return to mbr.8 CVS log

Up to [local] / sys / arch / landisk / stand / mbr

Annotation of sys/arch/landisk/stand/mbr/mbr.8, Revision 1.1.1.1

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