Annotation of sys/arch/sparc/stand/installboot/installboot.8, Revision 1.1
1.1 ! nbrk 1: .\" $OpenBSD: installboot.8,v 1.9 2007/05/31 19:20:05 jmc Exp $
! 2: .\" $NetBSD: installboot.8,v 1.1 1995/09/30 21:32:14 pk Exp $
! 3: .\"
! 4: .\" Copyright (c) 1995 Paul Kranenburg
! 5: .\" All rights reserved.
! 6: .\"
! 7: .\" Redistribution and use in source and binary forms, with or without
! 8: .\" modification, are permitted provided that the following conditions
! 9: .\" are met:
! 10: .\" 1. Redistributions of source code must retain the above copyright
! 11: .\" notice, this list of conditions and the following disclaimer.
! 12: .\" 2. Redistributions in binary form must reproduce the above copyright
! 13: .\" notice, this list of conditions and the following disclaimer in the
! 14: .\" documentation and/or other materials provided with the distribution.
! 15: .\" 3. All advertising materials mentioning features or use of this software
! 16: .\" must display the following acknowledgement:
! 17: .\" This product includes software developed by Paul Kranenburg.
! 18: .\" 3. The name of the author may not be used to endorse or promote products
! 19: .\" derived from this software without specific prior written permission
! 20: .\"
! 21: .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
! 22: .\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
! 23: .\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
! 24: .\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
! 25: .\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
! 26: .\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
! 27: .\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
! 28: .\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
! 29: .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
! 30: .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
! 31: .\"
! 32: .Dd $Mdocdate: May 31 2007 $
! 33: .Dt INSTALLBOOT 8 sparc
! 34: .Os
! 35: .Sh NAME
! 36: .Nm installboot
! 37: .Nd install a bootstrap on an FFS filesystem partition
! 38: .Sh SYNOPSIS
! 39: .Nm installboot
! 40: .Op Fl nvh
! 41: .Op Fl a Ar karch
! 42: .Ar boot
! 43: .Ar bootxx
! 44: .Ar device
! 45: .Sh DESCRIPTION
! 46: .Nm installboot
! 47: prepares an FFS filesystem partition for boot-strapping from the PROM.
! 48: The sparc bootblocks are split into two parts: a small first-stage program that
! 49: is written into the superblock area in a partition
! 50: .Po
! 51: and hence is limited in size to SBSIZE - DEV_BSIZE bytes
! 52: .Pc ,
! 53: and a second-stage program that resides in the filesystem proper.
! 54: The first-stage program is loaded into memory by the PROM.
! 55: After it receives control, it loads the second stage program from a set of
! 56: filesystem block numbers that have been hard-coded into it by the
! 57: .Nm installboot
! 58: program.
! 59: The second-stage boot program uses the device driver interface to
! 60: the PROM and the stand-alone filesystem code in
! 61: .Dq libsa.a
! 62: to locate and load the kernel.
! 63: The second-stage boot program and the prototype code for the
! 64: first-stage bootprogram can be found in
! 65: .Pa /usr/mdec/boot
! 66: and
! 67: .Pa /usr/mdec/bootxx
! 68: respectively.
! 69: The second-stage program commonly resides in the root directory as
! 70: .Pa /boot .
! 71: The utility
! 72: .Pa /usr/mdec/binstall
! 73: can be used to properly copy the second-stage bootprogram to its destination.
! 74: This script takes care of post-processing that is required on
! 75: .Pf non- Tn Openboot
! 76: machines.
! 77: .Pp
! 78: The options are as follows:
! 79: .Bl -tag -width flag
! 80: .It Fl a Ar karch
! 81: Set the machine architecture.
! 82: The argument
! 83: .Ar karch
! 84: can be one of
! 85: .Dq sun4 ,
! 86: .Dq sun4c
! 87: or
! 88: .Dq sun4m .
! 89: Sun 4c models with
! 90: .Tn Openboot
! 91: PROMs need the header to be present, while Sun 4 systems with the
! 92: .Dq old monitor
! 93: interface require the header to be stripped off.
! 94: This is normally taken care of by
! 95: .Nm installboot
! 96: automatically, but it's useful when preparing a bootable filesystem for
! 97: another system.
! 98: .It Fl h
! 99: Leave the
! 100: .Xr a.out 5
! 101: header on the installed
! 102: .Ar bootxx
! 103: program.
! 104: This option has been superseded by the
! 105: .Fl a Ar karch
! 106: option.
! 107: .It Fl n
! 108: Do not actually write anything on the disk.
! 109: .It Fl v
! 110: Verbose mode.
! 111: .El
! 112: .Pp
! 113: The arguments are:
! 114: .Bl -tag -width bootxx
! 115: .It Ar boot
! 116: the name of the second-stage boot program in the file system
! 117: where the first-stage boot program is to be installed.
! 118: .It Ar bootxx
! 119: the name of the prototype file for the first stage boot program.
! 120: .It Ar device
! 121: the name of the raw device in which the first-stage boot program
! 122: is to be installed.
! 123: This should correspond to the block device on which the file system containing
! 124: .Ar boot
! 125: is mounted.
! 126: .El
! 127: .Sh EXAMPLES
! 128: The following command will install the first-stage bootblocks in the
! 129: root filesystem
! 130: .Pq assumed to be mounted on Dq sd0a
! 131: using the file
! 132: .Pa /boot
! 133: as the second-level boot program:
! 134: .Bd -literal -offset indent
! 135: installboot /boot /usr/mdec/bootxx /dev/rsd0a
! 136: .Ed
! 137: .Sh SEE ALSO
! 138: .Xr disklabel 8 ,
! 139: .Xr init 8
! 140: .Sh HISTORY
! 141: The
! 142: .Nm installboot
! 143: first appeared in
! 144: .Nx 1.1 .
! 145: .Sh BUGS
! 146: .Nm installboot
! 147: requires simultaneous access to the mounted file system and
! 148: the raw device, but that is not allowed with the kernel
! 149: .Dv securelevel
! 150: variable set to a value greater than zero
! 151: .Pq the default ,
! 152: so
! 153: .Nm installboot
! 154: only works in single-user mode
! 155: .Pq or insecure mode - see Xr init 8 .
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