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cinap_lenrek 2011-07-14 23:01:38 +02:00
parent 4ac8429d11 115e8f0a72
commit 3ab76015d7
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42
sys/man/8/9boot
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@ -2,13 +2,13 @@
.SH NAME .SH NAME
9bootfat, 9bootiso, 9bootpxe \- PC bootloader for FAT, ISO and PXE network booting 9bootfat, 9bootiso, 9bootpxe \- PC bootloader for FAT, ISO and PXE network booting
.SH SYNOPSIS .SH SYNOPSIS
started by PC BIOS or chainloaded by partition bootsector Started by PC BIOS or chainloaded by partition bootsector
.SH DESCRIPTION .SH DESCRIPTION
9boot is the bootloader used on PCs to start the Plan 9 kernel. 9boot is the bootloader used on PCs to start the Plan 9 kernel.
Its task is to read and parse the Its task is to read and parse the
.IR plan9.ini (8) .IR plan9.ini (8)
configuration file, gather some basic system information like configuration file, gather some basic system information like
the amount of usable system memory, do some low level system the amount of usable system memory, do some basic system
initialization and load the kernel from the boot media into memory. initialization and load the kernel from the boot media into memory.
After reading the configuration, the loader will automatically After reading the configuration, the loader will automatically
@ -25,7 +25,8 @@ the
file. file.
.BR .BR
The word The word
.B clear [ .B clear
[
.I prefix .I prefix
] ]
can be used to remove parameters from the current configuration. can be used to remove parameters from the current configuration.
@ -34,8 +35,7 @@ If a
is specified, the first parameter that matches the prefix is specified, the first parameter that matches the prefix
is removed. If the is removed. If the
.IR prefix .IR prefix
argument is omited, the whole configuration will be reset. argument is omitted, the whole configuration will be reset.
.BR
The word The word
.B boot .B boot
will end the console and resume booting the kernel. will end the console and resume booting the kernel.
@ -46,23 +46,23 @@ was split into a number of distinct programs one for each boot
method. method.
.SH FAT BOOTING .SH FAT BOOTING
When booting Plan 9 from a harddisk or USB pen drive, a When booting Plan 9 from a harddisk or USB pen drive, a
FAT16/32 partition ( FAT16/32 partition
.IR 9fat .IR (9fat)
) is used to store the kernel and is used to store the kernel and
.IR plan9.ini (8) .IR plan9.ini (8)
configuration. Due to size limitations, instead of loading configuration. Due to size limitations, instead of loading
the kernel directly, the bootsector ( the kernel directly, the bootsector
.IR pbs .IR (pbs)
) of the FAT partition loads of the FAT partition loads
a 2nd stage bootloader a 2nd stage bootloader
.IR 9bootfat .IR (9bootfat)
from the root directory of the filesystem. from the root directory of the filesystem.
.SH CD-ROM BOOTING .SH CD-ROM BOOTING
Booting from CD-ROM requires only Booting from CD-ROM requires only the
.IR 9bootiso .IR 9bootiso
to be included in the ISO-9660 image under bootloader to be included in the ISO-9660 image under
.B 386/9bootiso, .B 386/9bootiso,
set as a non emulation bootblock (see set as a non-emulation bootblock (see
.IR mk9660 (8)). .IR mk9660 (8)).
Boot parameters are read from Boot parameters are read from
.B cfg/plan9.ini. .B cfg/plan9.ini.
@ -70,7 +70,8 @@ Boot parameters are read from
With a PXE capable BIOS and network card one can download With a PXE capable BIOS and network card one can download
.IR 9bootpxe .IR 9bootpxe
and boot the kernel from a TFTP server (see and boot the kernel from a TFTP server (see
.IR dhcpd (8), .IR dhcpd (8)
and
.IR ndb (6) .IR ndb (6)
for details). Once started, for details). Once started,
.IR 9bootpxe .IR 9bootpxe
@ -83,15 +84,14 @@ in lower case hex, and use this as its
.IR plan9.ini (8) .IR plan9.ini (8)
file. file.
.SH FILES .SH FILES
.TP
.B /386/pbs .B /386/pbs
.TP .br
.B /386/9bootfat .B /386/9bootfat
.TP .br
.B /386/9bootiso .B /386/9bootiso
.TP .br
.B /386/9bootpxe .B /386/9bootpxe
.SH SOURCE .SH SOURCE
.BR /sys/src/boot/pc . .BR /sys/src/boot/pc
.SH "SEE ALSO" .SH "SEE ALSO"
.IR plan9.ini (8) .IR plan9.ini (8)