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Document MEMORY_DISK_HOOKS & MEMORY_DISK_IS_ROOT options.

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leo 1997-02-26 07:07:15 +00:00
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share/man/man4/options.4
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@ -1,4 +1,4 @@
.\" $NetBSD: options.4,v 1.10 1997/02/26 03:19:20 jonathan Exp $
.\" $NetBSD: options.4,v 1.11 1997/02/26 07:07:15 leo Exp $
.\"
.\" Copyright (c) 1996
.\" Perry E. Metzger. All rights reserved.
@ -440,6 +440,13 @@ requiring a suid root program to do it.
This option changes part of the VM/pmap interface, to allow for
non-contiguous memory. On some ports it is not an option. These
ports typically only use one of the interfaces.
.It Cd options MEMORY_DISK_HOOKS
This option allows for some machine dependent functions to be called when
the ramdisk driver is configured. This can result in automatically loading
a ramdisk from floppy on open (among other things).
.It Cd options MEMORY_DISK_IS_ROOT
Forces the ramdisk to be the root device. This can only be overridden when
the kernel is booted in the 'ask-for-root' mode.
.It Cd options NTP
Turns on in-kernel precision timekeeping support used by software
implementing