.SH SYNOPSIS
.I none
.SH DESCRIPTION
-When booting Plan 9 on a PC, the DOS program
+When booting Plan 9 on a PC, the bootloader program
.IR 9boot (8)
-first reads a DOS file
-containing configuration information from the boot disk.
+first reads configuration information from a file
+on the boot media.
This file,
.BR plan9.ini ,
looks like a shell script containing lines of the form
.B /lib/firmware
or
.B /boot.
-To select the access point, the
+To limit the selected APs the options
.B essid=
and
.B bssid=
-parameters can be specified at boot or set during runtime
-like:
+may be set at boot or in the ether interface clone file
+using a space as the separator between option and value, e.g.
.EX
echo essid left-armpit >/net/ether1/clone
.EE
-If both
-.B essid=
-and
-.B bssid=
-are specified, both must match.
Scan results appear in the
.B ifstats
file and can be read out like:
cat /net/ether1/ifstats
.EE
Ad-hoc mode or WEP encryption is currently not supported.
-To enable WPA/WPA2 encryption, see
-.IR wpa (8)
-for details.
.TP
.B rt2860
Ralink Technology PCI/PCI-Express wireless adapters require
or
.B /boot.
See iwl section above for configuration details.
+.SS \fLwpapsk\fI=password\fP
+WPA/WPA2 encryption
+is detected automatically and a prompt for the
+.I password
+will appear when using the WIFI interface for netbooting.
+To avoid the prompt, the
+.I password
+can be specified with the boot parameter above.
+.SS \fLnora6=
+Disable automatic IPv6 configuration from incoming router advertisements.
.SS DISKS, TAPES
(S)ATA controllers are autodetected.
.SS \fL*nodma=\fP
and
.I slot
to use as a root device for bootstrapping.
+.SS \fLramdisk\fIX\fL=\fIsize\fP
+.SS \fLramdisk\fIX\fL=\fIsize sectorsize\fP
+.SS \fLramdisk\fIX\fL=\fIaddress size sectorsize\fP
+This reserves physical memory as a ramdisk that will appear as
+.IR sd (3)
+device \fLsdZ\fIX\fR.
+When the
+.I address
+argument is omited or zero, then the ramdisk will be allocated
+from the top of physical memory.
.SS AUDIO
.SS \fLaudio\fIX\fL=\fIvalue\fP
This defines a sound interface. PCI based audio devices such as
for more.
.SS \fLnobootprompt=\fIvalue\fP
Suppress the
-.L "root from"
+.L bootargs
prompt and use
.I value
as the answer instead.
+.SS \fLrootdir=\fB/root/\fIdir\fP
+.SS \fLrootspec=\fIspec\fP
+Changes the mount arguments for the root file server
+that was specified by
+.I bootargs
+above.
+By changing
+.I dir
+in
+.BR $rootdir ,
+a different sub-directory on the root file server
+can be used as the system root. see
+.IR boot (8)
+for details.
.SS \fLuser=\fIvalue\fP
Suppress the
.L "user"
battery life (see
.IR stats (8)).
It is not on by default because it causes problems on some laptops.
+.SS USB
+.SS \fL*nousbprobe=\fP
+Disable USB host controller detection.
+.SS \fL*nousbohci=\fP
+.SS \fL*nousbuhci=\fP
+.SS \fL*nousbehci=\fP
+.SS \fL*nousbxhci=\fP
+Disable specific USB host controller types.
+.SS \fLnousbrc=\fP
+Disable
+.IR nusbrc (8)
+startup at boot time.
.SS \fLnousbhname=\fP
When defined,
.IR nusbrc (8)
serial0=type=generic port=0x3E8 irq=5
monitor=445x
vgasize=1600x1200x8
-bootfile=/386/9pcf
+bootfile=/386/9pc
%
.EE
.SH "SEE ALSO"
.IR 9boot (8),
.IR booting (8),
.IR boot (8)
-.SH BUGS
-Being able to set the console device to other than a
-display is marginally useful on file servers; MS-DOS
-and the programs which run under it are so tightly bound
-to the display that it is necessary to have a display if any
-setup or reconfiguration programs need to be run.
-Also, the delay before any messages appear at boot time
-is disconcerting, as any error messages from the BIOS
-are lost.
-.PP
-The declaration of a kernel parameter which is a prefix of
-previously declared parameters will delete the previous
-ones. If this is not desired, parameters should be given
-in shortest to longest order.
projects / plan9front.git / blobdiff