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Document boot_cdrom, boot_multicons, and boot_serial.

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Reduce diffs between help.common and loader(8).
Mention that boot_userconfig is currently a no-op.
This commit is contained in:
Ruslan Ermilov 2004-09-30 13:09:00 +00:00
parent c3aadfb9d6
commit 69a02bda38
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=135967
5 changed files with 51 additions and 9 deletions
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33
sys/boot/common/help.common
View File

@ -143,28 +143,53 @@
Instructs the kernel to prompt the user for the name of the root device
when the kernel is booted.
################################################################################
# Tset Sboot_cdrom DMount root file system from CD-ROM
set boot_cdrom
Instructs the kernel to try to mount the root file system from CD-ROM.
################################################################################
# Tset Sboot_ddb DDrop to the kernel debugger (DDB)
set boot_ddb
Instructs the kernel to start in the DDB debugger, rather than
proceeding to initialise when booted.
proceeding to initialize when booted.
################################################################################
# Tset Sboot_gdb DSelect gdb-remote mode
# Tset Sboot_gdb DSelect gdb-remote mode for the kernel debugger
set boot_gdb
Selects gdb-remote mode for the kernel debugger by default.
################################################################################
# Tset Sboot_multicons DUse multiple consoles
set boot_multicons
Enables multiple console support in the kernel early on boot.
In a running system, console configuration can be manipulated
by the conscontrol(8) utility.
################################################################################
# Tset Sboot_serial DUse serial console
set boot_serial
Force the use of a serial console even when an internal console
is present.
################################################################################
# Tset Sboot_single DStart system in single-user mode
set boot_single
Prevents the kernel from initiating a multi-user startup, single-user
mode will be entered when the kernel has finished device probes.
Prevents the kernel from initiating a multi-user startup; instead,
a single-user mode will be entered when the kernel has finished
device probes.
################################################################################
# Tset Sboot_verbose DVerbose boot messages

17
sys/boot/common/loader.8
View File

@ -332,17 +332,30 @@ will be processed normally, defaulting to 10 seconds delay.
.It Va boot_askname
Instructs the kernel to prompt the user for the name of the root device
when the kernel is booted.
.It Va boot_cdrom
Instructs the kernel to try to mount the root file system from CD-ROM.
.It Va boot_ddb
Instructs the kernel to start in the DDB debugger, rather than
proceeding to initialize when booted.
.It Va boot_gdb
Selects gdb-remote mode for the kernel debugger by default.
.It Va boot_multicons
Enables multiple console support in the kernel early on boot.
In a running system, console configuration can be manipulated
by the
.Xr conscontrol 8
utility.
.It Va boot_serial
Force the use of a serial console even when an internal console
is present.
.It Va boot_single
Prevents the kernel from initiating a multi-user startup; instead single-user
mode will be entered when the kernel has finished device probing.
Prevents the kernel from initiating a multi-user startup; instead,
a single-user mode will be entered when the kernel has finished
device probing.
.It Va boot_userconfig
Requests that the kernel's interactive device configuration program
be run when the kernel is booted.
Currently a no-op.
.It Va boot_verbose
Setting this variable causes extra debugging information to be printed
by the kernel during the boot phase.

6
sys/boot/forth/loader.conf
View File

@ -62,10 +62,14 @@ module_path="/boot/modules" # Set the module search path
# The following boot_ variables are enabled
# by setting them to any value.
#boot_askname="" # Prompt the user for the name of the root device
#boot_cdrom="" # Attempt to mount root file system from CD-ROM
#boot_ddb="" # Instructs the kernel to start in the DDB debugger
#boot_gdb="" # Selects gdb-remote mode for the kernel debugger
#boot_multicons="" # Use multiple consoles
#boot_serial="" # Use serial console
#boot_single="" # Start system in single-user mode
#boot_userconfig="" # Run kernel's interactive device configuration program
#boot_userconfig="" # Run kernel's interactive device configuration program;
# currently a no-op
#boot_verbose="" # Causes extra debugging information to be printed
#init_path="/sbin/init:/sbin/oinit:/sbin/init.bak:/stand/sysinstall"
# Sets the list of init candidates

2
sys/boot/i386/loader/help.i386
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@ -49,7 +49,7 @@
set boot_userconfig
Requests that the kernel's interactive device configuration program
be run when the kernel is booted.
be run when the kernel is booted. Currently a no-op.
################################################################################
# Tset Sroot_disk_unit DForce the root disk unit number.

2
sys/boot/pc98/loader/help.pc98
View File

@ -31,7 +31,7 @@
set boot_userconfig
Requests that the kernel's interactive device configuration program
be run when the kernel is booted.
be run when the kernel is booted. Currently a no-op.
################################################################################
# Tset Sroot_disk_unit DForce the root disk unit number.