4.4BSD/usr/src/contrib/diskless.nfs/diskless_setup.8

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.\" Copyright (c) 1989 The Regents of the University of California.
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms are permitted
.\" provided that the above copyright notice and this paragraph are
.\" duplicated in all such forms and that any documentation,
.\" advertising materials, and other materials related to such
.\" distribution and use acknowledge that the software was developed
.\" by the University of California, Berkeley.  The name of the
.\" University may not be used to endorse or promote products derived
.\" from this software without specific prior written permission.
.\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
.\" IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
.\"
.\"	@(#)diskless_setup.8	5.2 (Berkeley) 01/21/92
.\"
.TH DISKLESS_SETUP 8 "January 21, 1992"
.UC 7
.SH NAME
diskless_setup \- set up a server for diskless/dataless clients
.SH SYNOPSIS
.B /sbin/diskless_setup
.B \-l
interface
.B \-r
rdir
[
.B \-o
]
[
.B \-s
size
]
[
.B \-h
addr
]
[
.B \-m
netmask
]
[
.B \-a
srv_addr
]
[
.B \-g
gateway
]
[
.B \-x
vmunix:offset
]
client
.SH DESCRIPTION
.I Diskless_setup
sets up files on a server to handle a diskless or dataless client workstation.
Based on the arguments, it fills in all the fields of an nfs_diskless structure
for that client and saves it in either a separate file or in the "vmunix"
executable image for that client at the appropriate byte offset.
See
.IR diskless (8)
for an overview of running diskless or dataless clients.
.IP "\-l interface"
The name of the network interface to be configured on the client at boot time
so that it can communicate with this server. (eg. le0)
.IP "\-r rdir"
The pathname of the root directory of the root file system for this client.
.IP "\-o"
Write the nfs_diskless structure to standard out so it can be piped to another
process in a shell script.
.IP "\-s size"
This client is to run diskless (ie. swapping to this server), so create a
swapfile of \fIsize\fR 512 byte blocks for this client.
.IP "\-h addr"
The internet address for the client's net interface specified with \-l.
(The default is the first address returned by
.IR gethostbyname (3)
for this client host.)
.IP "\-m netmask"
The subnet mask for the client's net interface specified with \-l.
(The default value is determined by the interface's address class.)
.IP "\-a srv_addr"
The internet address of this server.
(The default is the first address returned by
.IR gethostbyname (3)
for this server.)
.IP "\-g gateway"
The default gateway for the client to use to get to this server. This should
only be specified if the client is not on the same LAN as the server.
(For performance reasons, this should be avoided whereever possible.)
.IP "\-x vmunix:offset"
Write the nfs_diskless data structure into the "vmunix" file specified at the
specified byte \fIoffset\fR instead of a separate file. The executable file and byte
offset are specified separated by a colon. (eg. vmunix.pmax:654322)
.SH
Examples
.sp
diskless_setup -l le0 -r /diskless/pmax_root blondie
.sp
Setup the client "blondie" as a dataless workstation (ie. swapping locally)
communicating with this server via. "le0" and using the root file system
at /diskless/pmax_root. Blondie is attached to the same LAN as this server
and the first internet addresses returned by
.IR gethostbyname (3)
are appropriate for both the client and server addresses.
.sp
diskless_setup -l wd0 -r /diskless/i386_root -h 131.104.48.77 -m 255.255.255.0
-x vmunix.freddy:345672 freddy
.sp
Setup the client "freddy" as a dataless workstation communicating with the
server via. "wd0" and using the root file system at /diskless/i386_root.
Freddy's internet address for "wd0" is 131.104.48.77 with a subnet mask
of 255.255.255.0. The filled in nfs_diskless structure is to be written
into freddy's executable kernel called "vmunix.freddy" at byte offset
345672. (the byte offset is normally found using
.IR diskless_offset (8)
)
.sp
diskless_setup -l qe0 -r /diskless/uvax_root -s 20000 -a 131.104.48.8 bob
.sp
Setup the client "bob" as a diskless (ie. swapping to the server)
workstation ccommunicating with this server via. "qe0" and using a root
file system at /diskless/uvax_root.
The swap file on this server is 20,000 blocks and the address w.r.t. "bob"
of this server is 131.104.48.8.
.SH FILES
/var/diskless/setup.<client_hostname>
output of this command
.br
/var/diskless/swapfiles/swap.<client_hostname>
swap file for client
.SH SEE ALSO
.IR diskless (8)
.IR diskless_offset (8)
.IR diskless_boot (3)
.IR diskless_boot (5)
.SH BUGS
There is no capability of setting up diskless clients with remote swapping
on a separate server than the root file system.