About this Document............................................2
What is NetBSD?................................................2
Changes Between The NetBSD 7.1.2 and 7.2 Releases..............2
Features to be removed in a later release......................2
The NetBSD Foundation..........................................3
Sources of NetBSD..............................................3
NetBSD 7.2 Release Contents....................................3
NetBSD/next68k subdirectory structure.......................4
Binary distribution sets....................................4
NetBSD/next68k System Requirements and Supported Devices.......5
Supported hardware..........................................6
Unsupported hardware........................................6
Getting the NetBSD System on to Useful Media...................6
Preparing your System for NetBSD installation..................6
Get to the ROM Monitor prompt...............................6
Change the configuration parameters to netboot..............7
Installing the NetBSD System...................................7
Post installation steps.......................................11
Upgrading a previously-installed NetBSD System................13
Compatibility Issues With Previous NetBSD Releases............13
Issues affecting an upgrade from NetBSD 5.x releases.......14
Issues affecting an upgrade from NetBSD 6.x releases.......14
Using online NetBSD documentation.............................14
Administrivia.................................................15
Thanks go to..................................................15
Legal Mumbo-Jumbo.............................................16
The End.......................................................22
This document describes the installation procedure for
NetBSD
7.2 on the
next68k
platform.
It is available in four different formats titled
INSTALL.ext,
where
.ext
is one of
.ps, .html, .more,
or .txt:
.ps.html.moremore(1)
and
less(1)
pager utility programs.
This is the format in which the on-line
man
pages are generally presented.
.txtYou are reading the HTML version.
The NetBSD Operating System is a fully functional Open Source UNIX-like operating system derived from the University of California, Berkeley Networking Release 2 (Net/2), 4.4BSD-Lite, and 4.4BSD-Lite2 sources. NetBSD runs on many different different system architectures (ports) across a variety of distinct CPU families, and is being ported to more. The NetBSD 7.2 release contains complete binary releases for most of these system architectures, with preliminary support for the others included in source form. Please see the NetBSD website at http://www.NetBSD.org/ for information on them.)
NetBSD is a completely integrated system. In addition to its highly portable, high performance kernel, NetBSD features a complete set of user utilities, compilers for several languages, the X Window System, firewall software and numerous other tools, all accompanied by full source code.
NetBSD is a creation of the members of the Internet community. Without the unique cooperation and coordination the net makes possible, NetBSD would not exist.
The NetBSD 7.2 release brings support for new devices, the integration of many bug fixes, and many userland improvements. The result of these improvements is a stable operating system fit for production use that rivals most commercially available systems.
See http://www.NetBSD.org/releases/formal-7/NetBSD-7.2.html for some of the more noteworthy changes in this release.
A more extensive list of changes can be found in the CHANGES-7.2: https://cdn.NetBSD.org/pub/NetBSD/NetBSD-7.2/CHANGES-7.2 file in the top level directory of the NetBSD 7.2 release tree.
dhclient(8)
and
rtsol(8)
in favor of
dhcpcd(8).
groff(1).
Man pages are now handled with
mandoc(1),
and
groff(1)
can still be found in pkgsrc as
textproc/groff.
rtsol(8)
and
rtsold(8).
The
NetBSD
Foundation is a tax exempt, not-for-profit 501(c)(3) corporation
that devotes itself to the traditional goals and Spirit of the
NetBSD
Project and owns the trademark of the word
``NetBSD''.
It supports the design, development, and adoption of
NetBSD
worldwide.
More information on the
NetBSD
Foundation, its composition, aims, and work can be found at:
http://www.NetBSD.org/foundation/
Refer to
http://www.NetBSD.org/mirrors/
The root directory of the NetBSD 7.2 release is organized as follows:
.../NetBSD-7.2/
CHANGESCHANGES-7.0CHANGES-7.1CHANGES-7.2CHANGES.prevLAST_MINUTEREADME.filesimages/source/In addition to the files and directories listed above, there is one directory per architecture, for each of the architectures for which NetBSD 7.2 has a binary distribution.
The source distribution sets can be found in subdirectories of the
source
subdirectory of the distribution tree.
They contain the complete sources to the system.
The source distribution sets are as follows:
config(1)
utility.
All the above source sets are located in the
source/sets
subdirectory of the distribution tree.
The source sets are distributed as compressed tar files.
Except for the
pkgsrc
set, which is traditionally unpacked into
/usr/pkgsrc,
all sets may be unpacked into
/usr/src
with the command:
# cd / ; tar -zxpf set_name.tgz
In each of the source distribution set directories, there are files which contain the checksums of the files in the directory:
MD5SHA512The SHA512 digest is safer, but MD5 checksums are provided so that a wider range of operating systems can check the integrity of the release files.
next68k
subdirectory of the distribution:
.../NetBSD-7.2/next68k/.
It contains the following files and directories:
INSTALL.htmlINSTALL.psINSTALL.txtINSTALL.more.more
file contains underlined text using the
more(1)
conventions for indicating italic and bold display.
binary/kernel/netbsd-GENERIC.gzsets/installation/misc/next68k/binary/sets
subdirectory
of the
NetBSD
7.2
distribution tree, and are as follows:
/usr/include)
and the various system libraries (except the shared
libraries, which are included as part of the
base
set).
This set also includes the manual pages for
all of the utilities it contains, as well as the
system call and library manual pages.
/etc
and in several other places.
This set
must
be installed if you are installing the system from scratch, but should
not
be used if you are upgrading.
GENERIC
kernel, named
/netbsd.
You
must
install this distribution set.
/usr/share.
groff(1),
all related programs, and their manual pages.
NetBSD maintains its own set of sources for the X Window System in order to assure tight integration and compatibility. These sources are based on X.Org. Binary sets for the X Window System are distributed with NetBSD. The sets are:
The next68k binary distribution sets are distributed as gzipped tar files
named with the extension
.tgz,
e.g.
base.tgz.
The instructions given for extracting the source sets work equally
well for the binary sets, but it is worth noting that if you use that
method, the filenames stored in the sets are relative and therefore
the files are extracted
below the current directory.
Therefore, if you want to extract the binaries into your system, i.e.
replace the system binaries with them, you have to run the
tar -xzpf
command from the root directory (
/
) of your system.
NetBSD/next68k 7.2 will run on the 25 MHz 68040-based NeXT workstations. The Turbo (33 MHz) models are not supported. The 68030 model is not supported. NetBSD/next68k 7.2 does not have any local disk support, so you must netboot and run diskless.
The minimum configuration requires 4 MB of RAM and a network server capable of netbooting NetBSD/next68k. Serial consoles are poorly supported by the hardware, see the FAQ for help. Typically it is just easier to use the NeXT monitor and keyboard. http://www.NetBSD.org/ports/next68k/faq.html
Because NetBSD/next68k must run diskless, the distribution must be installed to a remote machine that NFS exports to the NeXT machine. As a result, there is no automated install procedure. Begin by retrieving the NetBSD set files onto the serving machine. These can be found at ftp.NetBSD.org. You may want to keep the following information handy:
IP Address: ftp.NetBSD.org
Login: anonymous
Password: <your e-mail address>
Server path: /pub/NetBSD/NetBSD-7.2/next68k/binary/sets
COMMAND-`
keys (the backquote is above 7 on the keypad on the right of the keyboard).
You should see a prompt like this:
NeXT ROM Monitor 2.5 (v66)
CPU MC68040 25 MHz, memory 100 nS
Backplane slot #0
Ethernet address: 0:0:f:0:fb:90
Memory size 40 MB
NeXT>
Write down the ethernet address. You will need this later to configure the netboot server for your NetBSD/next68k system.
p
key to modify the configuration parameters.
You will need to change the
boot command
to
en()netbsd
which is to boot from the
en()
ethernet device the kernel named
netbsd.
You should write down what the original
boot command
was in case you wish to boot
NEXTSTEP
in the future.
It will probably be
sd().
While modifying the parameters, you may wish to set the system to use
verbose test mode
which will print detailed messages while it is attempting to load the
kernel, as opposed to the normal graphic of a network cable.
You should not set the
extended diagnostics
as the system will try to boot a diagnostic kernel.
Here is an example configuration session:
NeXT> p
boot command: sd()? en()netbsd
DRAM tests: yes? yes
perform power-on system test: yes? yes
sound out tests: yes? yes
SCSI tests: yes? yes
loop until keypress: no? no
verbose test mode: no? yes
boot extended diagnostics: no? no
serial port A is alternate console: no? yes
allow any ROM command even if password protected: no? no
allow boot from any device even if password protected: no? no
allow optical drive #0 eject even if password protected: yes? yes
enable parity checking if parity memory is present: no? no
Now, whenever you reset or power on your system, it will attempt to netboot.
From the ROM Monitor prompt, you can simply type
b
to netboot.
You can also press the power key (above the arrows) to turn off the system.
To netboot a next68k, you must configure one or more servers to provide
information and files to your next68k (the
`client').
If you are using
NetBSD
(any architecture) on your netboot server(s), the information
provided here should be sufficient to configure everything.
Additionally, you may wish to look at the
diskless(8)
manual page and the manual pages for each daemon you'll be configuring.
If the server(s) are another operating system, you should consult the
NetBSD Diskless HOW-TO, which will walk you through the steps necessary to
configure the netboot services on a variety of platforms.
http://www.NetBSD.org/docs/network/netboot/
Briefly, the netboot
process involves discovery, bootstrap, kernel and file system stages.
In the first stage, the client discovers information
about where to find the bootstrap program.
Next, it downloads and executes the bootstrap program.
The bootstrap program goes through another discovery phase to determine
where the kernel is located.
The bootstrap program tries to mount the NFS share containing the kernel.
Once the kernel is loaded, it starts executing.
The
kernel tries to mount the NFS share that had the kernel and starts
executing
init(8).
All next68k systems use BOOTP for the discovery stage.
TFTP is used in the bootstrap phase to download
the bootstrap program,
boot.
NFS is used in both the kernel and file system stages to download the
kernel, and to access files on the file server.
We will use
`CC:CC:CC:CC:CC:CC'
as the MAC address (ethernet hardware address) of your netboot client
machine.
You should have determined this address in an earlier stage.
In this example, we will use
`192.168.1.10'
as the IP address of your client and
`client.test.net'
as its name.
We will assume you're providing all of your netboot services
on one machine called
`server.test.net'
with the client's files exported from the directory
/export/client/root.
You should, of course, replace all of these with the names, addresses,
and paths appropriate to your environment.
You should set up each netboot stage in order (i.e., discovery, bootstrap, kernel, and then file system) so that you can test them as you proceed.
dhcpd(8)
in
bootpd(8)
compatible mode
Put the following lines in your
/etc/dhcpd.conf
(see
dhcpd.conf(5)
and
dhcp-options(5)
for more information):
ddns-update-style none;
# Do not use any dynamic DNS features
#
allow bootp; # Allow bootp requests, thus the dhcp server
# will act as a bootp server.
#
authoritative; # master DHCP server for this subnet
#
subnet 192.168.1.0 netmask 255.255.255.0 {
# Which network interface to listen on.
# The zeros indicate the range of addresses
# that are allowed to connect.
}
group {
# Set of parameters common to all clients
# in this "group".
#
option broadcast-address 192.168.1.255;
option domain-name "test.net";
option domain-name-servers dns.test.net;
option routers router.test.net;
option subnet-mask 255.255.255.0;
#
# An individual client.
#
host client.test.net {
hardware ethernet CC:CC:CC:CC:CC:CC;
fixed-address 192.168.1.10;
#
# Name of the host (if the fixed address
# doesn't resolve to a simple name).
#
option host-name "client";
#
# Name of the bootloader or kernel
# to download via tftp.
#
filename "boot";
#
# The path on the NFS server.
#
option root-path "/export/client/root";
#
#next68k machines require non-RFC1048 BOOTP
#
always-reply-rfc1048 false;
#
# If your DHCP server is not your NFS server, supply the
# address of the NFS server. Since we assume you run everything
# on one server, this is not needed.
#
# next-server server.test.net;
}
#you may paste another "host" entry here for additional
#clients on this network
}
You will need to make sure that the
dhcpd.leases
file exists.
# touch /var/db/dhcpd.leases
You will need to start the dhcpd. If it's already running, you will need to restart it to force it to re-read its configuration file. If the server is running NetBSD, you can achieve this with:
# /etc/rc.d/dhcpd restart
tftpd(8)
The default configuration of the TFTP server is to run in a
chroot(8)
environment in the
/tftpboot
directory.
Thus, the first order of business is to create this directory:
# mkdir -p /tftpboot
Next, edit
/etc/inetd.conf
and uncomment the line with the TFTP daemon:
tftp dgram udp wait root /usr/libexec/tftpd tftpd -l -s /tftpboot
Now, restart
inetd(8).
If the server is running
NetBSD,
you can achieve this with:
# /etc/rc.d/inetd restart
Now, you need to copy the
bootloader
for your next68k machine to
/tftpboot.
Get
boot
from the
installation
directory of the distribution.
# cp boot /tftpboot
# chmod -R a+rX /tftpboot
Sometimes, the
arp(8)
table gets messed up, and the TFTP server can't communicate with the
client.
In this case, it will write a log message (via
syslogd(8))
to
/var/log/messages
saying:
`tftpd: write: Host is down'.
If this is the case, you may need to force the server to map your client's
ethernet address to its IP address:
# arp -s client CC:CC:CC:CC:CC:CC
nfsd(8),
mountd(8),
and
rpcbind(8)
Now your system should be able to load the bootstrap program and start looking for the kernel. Let's set up the NFS server. Create the directory you are exporting for the netboot client:
# mkdir -p /export/client/root
Put the following line in
/etc/exports
to enable NFS sharing:
/export/client/root -maproot=root client.test.net
If your server is currently running an NFS server, you only need to
restart
mountd(8).
Otherwise, you need to start
rpcbind(8)
and
nfsd(8).
If the server is running
NetBSD,
you can achieve this with:
# /etc/rc.d/rpcbind start
# /etc/rc.d/nfsd start
# /etc/rc.d/mountd restart
Now, if you place a kernel named
netbsd
in
/export/client/root
your client should boot the kernel.
Use
binary/kernel/netbsd-GENERIC.gz.
# gunzip netbsd-GENERIC.gz
# mv netbsd-GENERIC /export/client/root/netbsd
You need to extract and set up the client's installation of NetBSD. The Diskless HOW-TO describes how to provide better security and save space on the NFS server over the procedure listed here. See http://www.NetBSD.org/docs/network/netboot/nfs.html for details.
# cd /export/client/root
# tar -xpzf /path/to/files/base.tgz
# tar -xpzf /path/to/files/etc.tgz
Continue with the other non-essential distribution sets if desired.
# mkdir /export/client/root/swap
# dd if=/dev/zero of=/export/client/swap bs=4k count=4k
# echo '/export/client/swap -maproot=root:wheel client.test.net' >> /etc/exports
# /etc/rc.d/mountd restart
# cd /export/client/root/dev
# ./MAKEDEV all
This procedure only works on NetBSD hosts.
fstab(5)
Create a file in
/export/client/root/etc/fstab
with the following lines:
server:/export/client/swap none swap sw,nfsmntpt=/swap
server:/export/client/root / nfs rw 0 0
rc.conf(5)
Edit
/export/client/root/etc/rc.conf
rc_configured=YES
hostname="client"
defaultroute="192.168.1.1"
nfs_client=YES
auto_ifconfig=NO
net_interfaces=""
Make sure rc does not reconfigure the network device since it will lose its connection to the NFS server with your root file system.
hosts(5)
file.
Edit
/export/client/root/etc/hosts
::1 localhost
127.0.0.1 localhost
192.168.1.10 client.test.net client
192.168.1.5 server.test.net server
You need
these services to start up every time you boot
your server, make sure the following lines are present in your
/etc/rc.conf:
dhcpd=YES dhcpd_flags="-q"
nfs_server=YES # enable server daemons
mountd=YES
rpcbind=YES rpcbind_flags="-l" # -l logs libwrap
Also, you'll need to make sure the
tftpd
line in
/etc/inetd.conf
remains uncommented.
Once you've got the operating system running, there are a few things you need to do in order to bring the system into a properly configured state. The most important steps are described below.
postinstall(8).
/etc/rc.conf
If you or the installation software haven't done any configuration of
/etc/rc.conf
(sysinst
normally will),
the system will drop you into single user mode on first reboot with the
message
/etc/rc.conf is not configured. Multiuser boot aborted.
and with the root file system
(/)
mounted read-only.
When the system asks you to choose a shell, simply press
RETURN
to get to a
/bin/sh
prompt.
If you are asked for a terminal type, respond with
vt220
(or whatever is appropriate for your terminal type)
and press
RETURN.
You may need to type one of the following commands to get your delete key
to work properly, depending on your keyboard:
# stty erase '^h'
# stty erase '^?'
At this point, you need to configure at least
one file in the
/etc
directory.
You will need to mount your root file system read/write with:
# /sbin/mount -u -w /
Change to the
/etc
directory and take a look at the
/etc/rc.conf
file.
Modify it to your tastes, making sure that you set
rc_configured=YES
so that your changes will be enabled and a multi-user boot can
proceed.
Default values for the various programs can be found in
/etc/defaults/rc.conf,
where some in-line documentation may be found.
More complete documentation can be found in
rc.conf(5).
When you have finished editing
/etc/rc.conf,
type
exit
at the prompt to
leave the single-user shell and continue with the multi-user boot.
Other values that may need to be set in
/etc/rc.conf
for a networked environment are
hostname
and possibly
defaultroute.
You may also need to add an
ifconfig_int
for your
<int>
network interface,
along the lines of
ifconfig_xe0="inet 192.0.2.123 netmask 255.255.255.0"
or, if you have
myname.my.dom
in
/etc/hosts:
ifconfig_xe0="inet myname.my.dom netmask 255.255.255.0"
To enable proper hostname resolution, you will also want to add an
/etc/resolv.conf
file or (if you are feeling a little more adventurous) run
named(8).
See
resolv.conf(5)
or
named(8)
for more information.
Instead of manually configuring networking,
DHCP can be used by setting
dhcpcd=YES
in
/etc/rc.conf.
After reboot, you can log in as
root
at the login prompt.
If you didn't set a password in
sysinst,
there
is no initial password.
You should create an account for yourself (see below) and protect it and the
``root''
account with good passwords.
By default, root login from the network is disabled (even via
ssh(1)).
One way to become root over the network is to log in as a different
user that belongs to group
``wheel''
(see
group(5))
and use
su(1)
to become root.
Use the
useradd(8)
command to add accounts to your system.
Do not
edit
/etc/passwd
directly! See
vipw(8)
and
pwd_mkdb(8)
if you want to edit the password database.
If you installed the X Window System, you may want to read the chapter about X in the NetBSD Guide: http://www.NetBSD.org/docs/guide/en/chap-x.html
If you wish to install any of the software freely available for UNIX-like systems you are strongly advised to first check the NetBSD package system, pkgsrc. pkgsrc automatically handles any changes necessary to make the software run on NetBSD. This includes the retrieval and installation of any other packages the software may depend upon.
next68k/7.2/All
subdir.
If you installed
pkgin(1)
in the
sysinst
post-installation configuration menu, you can use it to automatically install
binary packages over the network.
Assuming that
/usr/pkg/etc/pkgin/repositories.conf
is correctly configured, you can install them with the following commands:
# pkgin install tcsh # pkgin install bash # pkgin install perl # pkgin install apache # pkgin install kde # pkgin install firefox ...
/pub/pkgsrc
directory.
The above commands will install the Tenex-csh and Bourne Again shells, the Perl programming language, Apache web server, KDE desktop environment and the Firefox web browser as well as all the packages they depend on.
pkgsrc(7)
framework for compiling packages can be obtained by
retrieving the file
https://cdn.NetBSD.org/pub/pkgsrc/pkgsrc.tar.gz.
It is typically extracted into
/usr/pkgsrc
(though other locations work fine) with the commands:
# cd /usr
# tar -zxpf pkgsrc.tar.gz
After extracting, see the
doc/pkgsrc.txt
file in the extraction directory (e.g.,
/usr/pkgsrc/doc/pkgsrc.txt)
for more information.
/etc/mail/aliases
to forward root mail to the right place.
Don't forget to run
newaliases(1)
afterwards.
/etc/rc.local
to run any local daemons you use.
/etc
files are documented in section 5 of the manual; so just invoking
# man 5 filename
is likely to give you more information on these files.
NetBSD/next68k
does not currently support an upgrade procedure.
Users upgrading from previous versions of NetBSD may wish to bear the following problems and compatibility issues in mind when upgrading to NetBSD 7.2.
Note that sysinst will automatically invoke
postinstall fix
A number of things have been removed from the NetBSD 7.2 release. See the ``Components removed from NetBSD'' section near the beginning of this document for a list.
See the section below on upgrading from NetBSD 6.x as well.
The following users need to be created:
The following groups need to be created:
The implementation of SHA2-HMAC in KAME_IPSEC as used in NetBSD 5.0 and before did not comply with current standards. FAST_IPSEC does, with the result that old and new systems cannot communicate over IPSEC if one of the affected authentication algorithms (hmac_sha256, hmac_sha384, hmac_sha512) is used.
The following user needs to be created:
The following groups need to be created:
Documentation is available if you installed the manual
distribution set.
Traditionally, the
``man pages''
(documentation) are denoted by
`name(section)'.
Some examples of this are
intro(1),
man(1),
apropos(1),
passwd(1),
and
passwd(5).
The section numbers group the topics into several categories, but three are of primary interest: user commands are in section 1, file formats are in section 5, and administrative information is in section 8.
The man command is used to view the documentation on a topic, and is started by entering man [section] topic. The brackets [] around the section should not be entered, but rather indicate that the section is optional. If you don't ask for a particular section, the topic with the lowest numbered section name will be displayed. For instance, after logging in, enter
# man passwd
to read the documentation for
passwd(1).
To view the documentation for
passwd(5),
enter
# man 5 passwd
instead.
If you are unsure of what man page you are looking for, enter
# apropos subject-word
where subject-word is your topic of interest; a list of possibly related man pages will be displayed.
If you've got something to say, do so! We'd like your input. There are various mailing lists available via the mailing list server at majordomo@NetBSD.org. See http://www.NetBSD.org/mailinglists/ for details.
There are various mailing lists set up to deal with comments and questions about this release. Please send comments to: netbsd-comments@NetBSD.org.
To report bugs, use the
send-pr(1)
command shipped with
NetBSD,
and fill in as much information about the problem as you can.
Good bug reports include lots of details.
Bugs also can be submitted and queried with the web interface at http://www.NetBSD.org/support/send-pr.html
There are also port-specific mailing lists, to discuss aspects of each port of NetBSD. Use majordomo to find their addresses, or visit http://www.NetBSD.org/mailinglists/
If you're interested in doing a serious amount of work on a specific port, you probably should contact the `owner' of that port (listed below).
If you'd like to help with NetBSD, and have an idea as to how you could be useful, send us mail or subscribe to: netbsd-users@NetBSD.org.
As a favor, please avoid mailing huge documents or files to these mailing lists. Instead, put the material you would have sent up for FTP or WWW somewhere, then mail the appropriate list about it. If you'd rather not do that, mail the list saying you'll send the data to those who want it.
Keith Bostic Ralph Campbell Mike Karels Marshall Kirk McKusick
for their work on BSD systems, support, and encouragement.
All product names mentioned herein are trademarks or registered trademarks of their respective owners.
The following notices are required to satisfy the license terms of the software that we have mentioned in this document:
NetBSD is a registered trademark of The NetBSD Foundation, Inc.
In the following statement, the phrase ``this text'' refers to portions
of the system documentation.
Portions of this text are reprinted and reproduced in electronic form in
NetBSD, from IEEE Std 1003.1, 2004 Edition, Standard for
Information Technology -- Portable Operating System Interface (POSIX),
The Open Group Base Specifications Issue 6, Copyright (C) 2001-2004 by the
Institute of Electrical and Electronics Engineers, Inc and The Open Group.
In the event of any discrepancy between these versions and the original
IEEE and The Open Group Standard, the original IEEE and The Open Group
Standard is the referee document.
The original Standard can be obtained online at
http://www.opengroup.org/unix/online.html.
This notice shall appear on any product containing this material.
In the following statement, "This software" refers to the parallel port driver:
Some files have the following copyright:
Permission to use, copy, modify and distribute this software and its
documentation is hereby granted, provided that both the copyright
notice and this permission notice appear in all copies of the
software, derivative works or modified versions, and any portions
thereof, and that both notices appear in supporting documentation.
CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS
CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
Carnegie Mellon requests users of this software to return to
any improvements or extensions that they make and grant Carnegie the
rights to redistribute these changes.
Some files have the following copyright:
Author: Chris G. Demetriou
Permission to use, copy, modify and distribute this software and
its documentation is hereby granted, provided that both the copyright
notice and this permission notice appear in all copies of the
software, derivative works or modified versions, and any portions
thereof, and that both notices appear in supporting documentation.
Carnegie Mellon requests users of this software to return to
any improvements or extensions that they make and grant Carnegie the
rights to redistribute these changes.
Some files have the following copyright:
Permission to use, copy, modify, and distribute this
software and its documentation for any purpose and without
fee is hereby granted, provided that the above copyright
notice appear in all copies. Stanford University
makes no representations about the suitability of this
software for any purpose. It is provided "as is"
without express or implied warranty.
Copyright (c) 1991,1990,1989 Carnegie Mellon University
All Rights Reserved.
Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
School of Computer Science
Carnegie Mellon University
Pittsburgh PA 15213-3890
All rights reserved.
CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
School of Computer Science
Carnegie Mellon University
Pittsburgh PA 15213-3890