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Update for Greg Woods. Add new options and mention the bit values together

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with the options
This commit is contained in:
christos 2006-08-05 17:58:53 +00:00
parent 50097c84af
commit e846b07c1f
1 changed files with 31 additions and 16 deletions
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47
lib/libc/sys/reboot.2
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@ -1,4 +1,4 @@
.\" $NetBSD: reboot.2,v 1.21 2004/11/21 10:45:08 jmmv Exp $
.\" $NetBSD: reboot.2,v 1.22 2006/08/05 17:58:53 christos Exp $
.\"
.\" Copyright (c) 1980, 1991, 1993
.\" The Regents of the University of California. All rights reserved.
@ -55,10 +55,11 @@ options, defined in the include file
.Aq Pa sys/reboot.h ,
to be passed
to the new kernel or the new bootstrap and init programs.
.Bl -tag -width RB_INITNAMEA
.It Dv RB_AUTOBOOT
.Bl -column RB_INITNAMEA 0x0000
.It Dv RB_AUTOBOOT Ta Li 0x0000 Ta
The default, causing the system to reboot in its usual fashion.
.It Dv RB_ASKNAME
.Pp
.It Dv RB_ASKNAME Ta Li 0x0001 Ta
Interpreted by the bootstrap program itself, causing it to
prompt on the console as to what file should be booted.
Normally, the system is booted from the file
@ -67,33 +68,33 @@ where
.Em xx
is the default disk name,
without prompting for the file name.
.It Dv RB_DFLTROOT
.It Dv RB_DFLTROOT Ta Li 0x0020 Ta
Use the compiled in root device.
Normally, the system uses the device from which it was booted
as the root device if possible.
(The default behavior is dependent on the ability of the bootstrap program
to determine the drive from which it was loaded, which is not possible
on all systems.)
.It Dv RB_DUMP
.It Dv RB_DUMP Ta Li 0x0100 Ta
Dump kernel memory before rebooting; see
.Xr savecore 8
for more information.
.It Dv RB_HALT
.It Dv RB_HALT Ta Li 0x0008 Ta
the processor is simply halted; no reboot takes place.
This option should be used with caution.
.It Dv RB_POWERDOWN
If used in conjunction with
.It Dv RB_POWERDOWN Ta Li 0x0808 Ta
This option is always used in conjunction with
.Dv RB_HALT ,
and if the system hardware supports the function, the system will be
powered off.
.It Dv RB_INITNAME
powered off, otherwise it has no effect.
.It Dv RB_INITNAME Ta Li 0x0010 Ta
An option allowing the specification of an init program (see
.Xr init 8 )
other than
.Pa /sbin/init
to be run when the system reboots.
This switch is not currently available.
.It Dv RB_KDB
.It Dv RB_KDB Ta Li 0x0040 Ta
Load the symbol table and enable a built-in debugger in the system.
This option will have no useful function if the kernel is not configured
for debugging.
@ -105,16 +106,19 @@ call.
See
.Xr ddb 4
for more information.
.It Dv RB_NOSYNC
.Pp
.It Dv RB_NOSYNC Ta Li 0x0004 Ta
Normally, the disks are sync'd (see
.Xr sync 8 )
before the processor is halted or rebooted.
This option may be useful if file system changes have been made manually
or if the processor is on fire.
.It Dv RB_RDONLY
.Pp
.It Dv RB_RDONLY Ta Li 0x0080 Ta
Initially mount the root file system read-only.
This is currently the default, and this option has been deprecated.
.It Dv RB_SINGLE
.Pp
.It Dv RB_SINGLE Ta Li 0x0002 Ta
Normally, the reboot procedure involves an automatic disk consistency
check and then multi-user operations.
.Dv RB_SINGLE
@ -133,11 +137,17 @@ of a disk chosen in a processor specific way.
An automatic consistency check of the disks is normally performed
(see
.Xr fsck 8 ) .
.It Dv RB_STRING
.It Dv RB_STRING Ta Li 0x0400 Ta
.Fa bootstr
is a string passed to the firmware on the machine, if possible, if this
option is set.
Currently this is only implemented on the sparc and the sun3 ports.
.Pp
.It Dv RB_USERCONF Ta Li 0x1000 Ta
Initially invoke the
.Xr userconf 4
facility when the system starts up again, if it has been compiled into
the kernel that is loaded.
.El
.Sh RETURN VALUES
If successful, this call never returns.
@ -161,3 +171,8 @@ The
.Fn reboot
function call appeared in
.Bx 4.0 .
.Pp
The
.Dv RB_DFLTROOT
option is now
.Em obsolete .