Add basic UEFI boot procedure manpage
Reviewed by: brueffer MFC after: 4 days Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D959
This commit is contained in:
Ed Maste
parent
d60bfba9d6
commit
4bf111c32a
@ -11,6 +11,7 @@ MAN= crash.8 \
|
|||||||
rc.sendmail.8 \
|
rc.sendmail.8 \
|
||||||
rc.subr.8 \
|
rc.subr.8 \
|
||||||
rescue.8 \
|
rescue.8 \
|
||||||
|
${_uefi.8} \
|
||||||
yp.8
|
yp.8
|
||||||
|
|
||||||
MLINKS= rc.8 rc.atm.8 \
|
MLINKS= rc.8 rc.atm.8 \
|
||||||
@ -25,4 +26,8 @@ MLINKS+=yp.8 NIS.8 \
|
|||||||
yp.8 nis.8 \
|
yp.8 nis.8 \
|
||||||
yp.8 YP.8
|
yp.8 YP.8
|
||||||
|
|
||||||
|
.if ${MACHINE_CPUARCH} == "amd64"
|
||||||
|
_uefi.8= uefi.8
|
||||||
|
.endif
|
||||||
|
|
||||||
.include <bsd.prog.mk>
|
.include <bsd.prog.mk>
|
||||||
|
|||||||
152
share/man/man8/uefi.8
Normal file
152
share/man/man8/uefi.8
Normal file
@ -0,0 +1,152 @@
|
|||||||
|
.\" Copyright (c) 2014 The FreeBSD Foundation
|
||||||
|
.\" All rights reserved.
|
||||||
|
.\"
|
||||||
|
.\" 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 AUTHORS 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 AUTHORS 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.
|
||||||
|
.\"
|
||||||
|
.\" $FreeBSD$
|
||||||
|
.\"
|
||||||
|
.Dd October 17, 2014
|
||||||
|
.Dt UEFI 8
|
||||||
|
.Os
|
||||||
|
.Sh NAME
|
||||||
|
.Nm UEFI
|
||||||
|
.Nd Unified Extensible Firmware Interface bootstrapping procedures
|
||||||
|
.Sh DESCRIPTION
|
||||||
|
The
|
||||||
|
.Nm
|
||||||
|
Unified Extensible Firmware Interface provides boot- and run-time services
|
||||||
|
services to operating systems.
|
||||||
|
.Nm
|
||||||
|
is a replacement for the legacy BIOS on the i386 and amd64 CPU architectures,
|
||||||
|
and is also used on arm64 and ia64.
|
||||||
|
.Pp
|
||||||
|
The
|
||||||
|
.Nm
|
||||||
|
boot process loads system bootstrap code located in an EFI System Partition
|
||||||
|
(ESP).
|
||||||
|
The ESP is a GPT or MBR parition with a specific identifier that contains an
|
||||||
|
.Xr msdosfs 5
|
||||||
|
FAT file system with a specified file hierarchy.
|
||||||
|
.Bl -column -offset indent ".Sy Partition Scheme" ".Sy ESP Identifier"
|
||||||
|
.It Sy "Partition Scheme" Ta Sy "ESP Identifier"
|
||||||
|
.It GPT Ta C12A7328-F81F-11D2-BA4B-00A0C93EC93B
|
||||||
|
.It MBR Ta 0xEF
|
||||||
|
.El
|
||||||
|
.Pp
|
||||||
|
The
|
||||||
|
.Nm
|
||||||
|
boot process proceeds as follows:
|
||||||
|
.Bl -enum -offset indent -compact
|
||||||
|
.It
|
||||||
|
.Nm
|
||||||
|
firmware runs at power up and searches for an OS loader in the EFI system
|
||||||
|
partition.
|
||||||
|
The path to the loader may be set by an EFI environment variable.
|
||||||
|
If not set, the default is
|
||||||
|
.Pa /EFI/BOOT/BOOTX64.EFI .
|
||||||
|
The default
|
||||||
|
.Nm
|
||||||
|
boot configuration for
|
||||||
|
.Fx
|
||||||
|
installs
|
||||||
|
.Pa boot1.efi
|
||||||
|
as
|
||||||
|
.Pa /EFI/BOOT/BOOTX64.EFI .
|
||||||
|
.It
|
||||||
|
.Pa boot1.efi
|
||||||
|
locates the first partition with the type
|
||||||
|
.Li freebsd-ufs ,
|
||||||
|
and from it loads
|
||||||
|
.Pa loader.efi .
|
||||||
|
.It
|
||||||
|
.Pa loader.efi
|
||||||
|
loads and boots the kernel, as described in
|
||||||
|
.Xr loader 8 .
|
||||||
|
.El
|
||||||
|
.Pp
|
||||||
|
The
|
||||||
|
.Xr vt 4
|
||||||
|
system console is automatically selected when booting via
|
||||||
|
.Nm .
|
||||||
|
.Sh FILES
|
||||||
|
.Bl -tag -width /boot/loader -compact
|
||||||
|
.It Pa /boot/boot1.efi
|
||||||
|
First stage
|
||||||
|
.Nm
|
||||||
|
bootstrap
|
||||||
|
.It Pa /boot/boot1.efifat
|
||||||
|
.Xr msdosfs 5
|
||||||
|
FAT file system image containing
|
||||||
|
.Pa boot1.efi
|
||||||
|
for use by
|
||||||
|
.Xr bsdinstall 8
|
||||||
|
and the
|
||||||
|
.Ar bootcode
|
||||||
|
argument to
|
||||||
|
.Xr gpart 8 .
|
||||||
|
.It Pa /boot/loader.efi
|
||||||
|
Final stage bootstrap
|
||||||
|
.It Pa /boot/kernel/kernel
|
||||||
|
default kernel
|
||||||
|
.It Pa /boot/kernel.old/kernel
|
||||||
|
typical non-default kernel (optional)
|
||||||
|
.El
|
||||||
|
.Sh CAVEATS
|
||||||
|
EFI environment variables are not supported by
|
||||||
|
.Xr loader 8
|
||||||
|
or the kernel.
|
||||||
|
.Pp
|
||||||
|
.Pa boot1.efi
|
||||||
|
loads
|
||||||
|
.Pa loader.efi
|
||||||
|
from the first FreeBSD-UFS file system it locates, even if it is on a
|
||||||
|
different disk.
|
||||||
|
.Pp
|
||||||
|
.Pa boot1.efi
|
||||||
|
cannot load
|
||||||
|
.Pa loader.efi
|
||||||
|
from a
|
||||||
|
.Xr ZFS 8
|
||||||
|
file system.
|
||||||
|
As a result,
|
||||||
|
.Nm
|
||||||
|
does not support a typical root file system on ZFS configuration.
|
||||||
|
.Sh SEE ALSO
|
||||||
|
.Xr vt 4 ,
|
||||||
|
.Xr msdosfs 5 ,
|
||||||
|
.Xr boot 8 ,
|
||||||
|
.Xr gpart 8
|
||||||
|
.Sh HISTORY
|
||||||
|
.Nm
|
||||||
|
boot support first appeared in
|
||||||
|
.Fx 10.1 .
|
||||||
|
.Sh AUTHORS
|
||||||
|
.An -nosplit
|
||||||
|
.Nm
|
||||||
|
boot support was developed by
|
||||||
|
.An Benno Rice Aq Mt benno@FreeBSD.org ,
|
||||||
|
.An Ed Maste Aq Mt emaste@FreeBSD.org ,
|
||||||
|
and
|
||||||
|
.An Nathan Whitehorn Aq Mt nwhitehorn@FreeBSD.org .
|
||||||
|
The
|
||||||
|
.Fx
|
||||||
|
Foundation sponsored portions of the work.
|
||||||
Loading…
x
Reference in New Issue
Block a user