$NetBSD: boot.8,v 1.4 2017/02/17 22:30:28 christos Exp $
Copyright (c) 2006 The NetBSD Foundation, Inc.
All rights reserved.
This code is derived from software contributed to The NetBSD Foundation
by Tim Rightnour
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
.Dd February 17, 2017 .Dt BOOT 8 prep .Os .Sh NAME .Nm boot .Nd system bootstrapping procedures .Sh SYNOPSIS .Nm boot .Sh DESCRIPTION .Ss Power fail and crash recovery Normally, the system will reboot itself at power-up or after crashes. An automatic consistency check of the file systems will be performed as described in .Xr fsck 8 , and unless this fails, the system will resume multi-user operations. .Ss Cold starts The prep architecture does not allow the direct booting of a kernel from the hard drive. Instead it requires a complete boot image to be loaded. This boot image contains a .Nx kernel, which will then provide access to the devices on the machine. The image can be placed on any device that the firmware considers a bootable device. Usually this is either a SCSI disk, tape, CD-ROM, or floppy drive. .Ss Boot program options The prep architecture and bootloader does not support any option parsing at the boot prompt. .Ss Boot partition The prep port requires a special boot partition on the primary boot device in order to load the kernel. This partition consists of a PC-style i386 partition label, a small bootloader, and a kernel image. The prep firmware looks for a partition of type 0x41 (65) and expects the bootloader, immediately followed by the kernel, to be there. The .Xr prep/mkbootimage 8 command needs to be used to generate this image. .Sh FILES l -tag -width /usr/mdec/boot_com0xx -compact t Pa /netbsd system code t Pa /usr/mdec/boot system bootstrap t Pa /usr/mdec/boot_com0 system bootstrap with serial console .El .Sh SEE ALSO .Xr disklabel 8 , .Xr fsck 8 , .Xr halt 8 , .Xr init 8 , .Xr installboot 8 , .Xr prep/mkbootimage 8 , .Xr rc 8 , .Xr shutdown 8 , .Xr syslogd 8
Copyright (c) 2006 The NetBSD Foundation, Inc.
All rights reserved.
This code is derived from software contributed to The NetBSD Foundation
by Tim Rightnour
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
.Dd February 17, 2017 .Dt BOOT 8 prep .Os .Sh NAME .Nm boot .Nd system bootstrapping procedures .Sh SYNOPSIS .Nm boot .Sh DESCRIPTION .Ss Power fail and crash recovery Normally, the system will reboot itself at power-up or after crashes. An automatic consistency check of the file systems will be performed as described in .Xr fsck 8 , and unless this fails, the system will resume multi-user operations. .Ss Cold starts The prep architecture does not allow the direct booting of a kernel from the hard drive. Instead it requires a complete boot image to be loaded. This boot image contains a .Nx kernel, which will then provide access to the devices on the machine. The image can be placed on any device that the firmware considers a bootable device. Usually this is either a SCSI disk, tape, CD-ROM, or floppy drive. .Ss Boot program options The prep architecture and bootloader does not support any option parsing at the boot prompt. .Ss Boot partition The prep port requires a special boot partition on the primary boot device in order to load the kernel. This partition consists of a PC-style i386 partition label, a small bootloader, and a kernel image. The prep firmware looks for a partition of type 0x41 (65) and expects the bootloader, immediately followed by the kernel, to be there. The .Xr prep/mkbootimage 8 command needs to be used to generate this image. .Sh FILES l -tag -width /usr/mdec/boot_com0xx -compact t Pa /netbsd system code t Pa /usr/mdec/boot system bootstrap t Pa /usr/mdec/boot_com0 system bootstrap with serial console .El .Sh SEE ALSO .Xr disklabel 8 , .Xr fsck 8 , .Xr halt 8 , .Xr init 8 , .Xr installboot 8 , .Xr prep/mkbootimage 8 , .Xr rc 8 , .Xr shutdown 8 , .Xr syslogd 8
Indexes created Thu Sep 25 16:09:42 GMT 2025