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IntroductionRestructured, reorganized, and parts rewritten by
&a.jim;, 17 January 2000.SynopsisThank you for your interest in FreeBSD! The following chapter
covers various items about the FreeBSD Project, such as its history,
goals, development model, and so on.
- FreeBSD is a 4.4BSD-Lite2 based operating system for the Intel
+ FreeBSD is a 4.4BSD-Lite based operating system for the Intel
architecture (x86) and DEC Alpha based systems. Ports to other
architectures are also underway. For a brief overview of FreeBSD,
see the next section. You can also
read about the history of FreeBSD,
or the current release. If you
are interested in contributing something to the Project (code,
hardware, unmarked bills), see the contributing to FreeBSD section.Welcome to FreeBSD!Since you are still here reading this, you most likely have some
idea as to what FreeBSD is and what it can do for you. If you are
new to FreeBSD, read on for more information.What is FreeBSD?In general, FreeBSD is a state-of-the-art operating system
- based on 4.4BSD-Lite2. It runs on computer systems based on the
+ based on 4.4BSD-Lite. It runs on computer systems based on the
Intel architecture (x86), and also the DEC Alpha
architecture.FreeBSD is used to power some of the biggest sites on the
Internet, including:Yahoo!HotmailApacheBe, Inc.Blue Mountain
ArtsPair
NetworksWhistle
CommunicationsWalnut Creek
CDROMand many more.What can FreeBSD do?FreeBSD has many noteworthy features. Some of these
are:Preemptive multitasking with
dynamic priority adjustment to ensure smooth and fair
sharing of the computer between applications and users, even
under the heaviest of loads.Multi-user facilities which allow many
people to use a FreeBSD system simultaneously for a variety
of things. This means, for example, that system peripherals
such as printers and tape drives are properly shared between
all users on the system or the network and that individual
resource limits can be placed on users or groups of users,
protecting critical system resources from over-use.Strong TCP/IP networking with
support for industry standards such as SLIP, PPP, NFS, DHCP,
and NIS. This means that your FreeBSD machine can
inter-operate easily with other systems as well as act as an
enterprise server, providing vital functions such as NFS
(remote file access) and e-mail services or putting your
organization on the Internet with WWW, FTP, routing and
firewall (security) services.Memory protection ensures that
applications (or users) cannot interfere with each other. One
application crashing will not affect others in any way.FreeBSD is a 32-bit operating
system (64-bit on the Alpha) and was
designed as such from the ground up.The industry standard X Window System
(X11R6) provides a graphical user interface (GUI) for the cost
of a common VGA card and monitor and comes with full
sources.Binary compatibility with many
programs built for Linux, SCO, SVR4, BSDI and NetBSD.Thousands of ready-to-run
applications are available from the FreeBSD
ports and packages
collection. Why search the net when you can find it all right
here?Thousands of additional and
easy-to-port applications are available
on the Internet. FreeBSD is source code compatible with most
popular commercial Unix systems and thus most applications
require few, if any, changes to compile.Demand paged virtual memory and
merged VM/buffer cache design efficiently
satisfies applications with large appetites for memory while
still maintaining interactive response to other users.SMP support for machines with
multiple CPUs (Intel only).A full complement of C,
C++, Fortran, and
Perl development tools.
Many additional languages for advanced research
and development are also available in the ports and packages
collection.Source code for the entire system
means you have the greatest degree of control over your
environment. Why be locked into a proprietary solution
at the mercy of your vendor when you can have a truly Open
System?Extensive on-line
documentation.And many more!
- FreeBSD is based on the 4.4BSD-Lite2 release from Computer
+ FreeBSD is based on the 4.4BSD-Lite release from Computer
Systems Research Group (CSRG) at the University of California at
Berkeley, and carries on the distinguished tradition of BSD
systems development. In addition to the fine work provided by
CSRG, the FreeBSD Project has put in many thousands of hours in
fine tuning the system for maximum performance and reliability in
real-life load situations. As many of the commercial giants
struggle to field PC operating systems with such features,
performance and reliability, FreeBSD can offer them
now!The applications to which FreeBSD can be put are truly
limited only by your own imagination. From software development
to factory automation, inventory control to azimuth correction of
remote satellite antennae; if it can be done with a commercial
UNIX product then it is more than likely that you can do it with
FreeBSD, too! FreeBSD also benefits significantly from the
literally thousands of high quality applications developed by
research centers and universities around the world, often
available at little to no cost. Commercial applications are also
available and appearing in greater numbers every day.Because the source code for FreeBSD itself is generally
available, the system can also be customized to an almost unheard
of degree for special applications or projects, and in ways not
generally possible with operating systems from most major
commercial vendors. Here is just a sampling of some of the
applications in which people are currently using FreeBSD:Internet Services: The robust TCP/IP
networking built into FreeBSD makes it an ideal platform for a
variety of Internet services such as:FTP serversWorld Wide Web servers (standard or secure
[SSL])Firewalls and NAT (IP masquerading)
gateways.Electronic Mail serversUSENET News or Bulletin Board SystemsAnd more...With FreeBSD, you can easily start out small with an
inexpensive 386 class PC and upgrade all the way up to a
quad-processor Xeon with RAID storage as your enterprise
grows.Education: Are you a student of
computer science or a related engineering field? There is no
better way of learning about operating systems, computer
architecture and networking than the hands on, under the hood
experience that FreeBSD can provide. A number of freely
available CAD, mathematical and graphic design packages also
make it highly useful to those whose primary interest in a
computer is to get other work
done!Research: With source code for the
entire system available, FreeBSD is an excellent platform for
research in operating systems as well as other branches of
computer science. FreeBSD's freely available nature also makes
it possible for remote groups to collaborate on ideas or
shared development without having to worry about special
licensing agreements or limitations on what may be discussed
in open forums.Networking: Need a new router? A
name server (DNS)? A firewall to keep people out of your
internal network? FreeBSD can easily turn that unused 386 or
486 PC sitting in the corner into an advanced router with
sophisticated packet-filtering capabilities.X Window workstation: FreeBSD is a
fine choice for an inexpensive X terminal solution, either
using the freely available XFree86 server or one of the
excellent commercial servers provided by X Inside. Unlike an
X terminal, FreeBSD allows many applications to be run
locally, if desired, thus relieving the burden on a central
server. FreeBSD can even boot diskless, making
individual workstations even cheaper and easier to
administer.Software Development: The basic
FreeBSD system comes with a full complement of development
tools including the renowned GNU C/C++ compiler and
debugger.FreeBSD is available in both source and binary form on CDROM
and via anonymous FTP. See Obtaining
FreeBSD for more details.About the FreeBSD ProjectThe following section provides some background information on
the project, including a brief history, project goals, and the
development model of the project.A Brief History of FreeBSDContributed by &a.jkh;.The FreeBSD project had its genesis in the early part of 1993,
partially as an outgrowth of the Unofficial 386BSD
Patchkit by the patchkit's last 3 coordinators: Nate
Williams, Rod Grimes and myself.Our original goal was to produce an intermediate snapshot of
386BSD in order to fix a number of problems with it that the
patchkit mechanism just was not capable of solving. Some of you
may remember the early working title for the project being
386BSD 0.5 or 386BSD Interim in
reference to that fact.386BSD was Bill Jolitz's operating system, which had been up
to that point suffering rather severely from almost a year's worth
of neglect. As the patchkit swelled ever more uncomfortably with
each passing day, we were in unanimous agreement that something
had to be done and decided to try and assist Bill by providing
this interim cleanup snapshot. Those plans came to
a rude halt when Bill Jolitz suddenly decided to withdraw his
sanction from the project without any clear indication of what
would be done instead.It did not take us long to decide that the goal remained
worthwhile, even without Bill's support, and so we adopted the
name FreeBSD, coined by David Greenman. Our initial
objectives were set after consulting with the system's current
users and, once it became clear that the project was on the road
to perhaps even becoming a reality, I contacted Walnut Creek CDROM
with an eye towards improving FreeBSD's distribution channels for
those many unfortunates without easy access to the Internet.
Walnut Creek CDROM not only supported the idea of distributing
FreeBSD on CD but also went so far as to provide the project with a
machine to work on and a fast Internet connection. Without Walnut
Creek CDROM's almost unprecedented degree of faith in what was, at
the time, a completely unknown project, it is quite unlikely that
FreeBSD would have gotten as far, as fast, as it has today.The first CDROM (and general net-wide) distribution was
FreeBSD 1.0, released in December of 1993. This was based on the
4.3BSD-Lite (Net/2) tape from U.C. Berkeley, with
many components also provided by 386BSD and the Free Software
Foundation. It was a fairly reasonable success for a first
offering, and we followed it with the highly successful FreeBSD
1.1 release in May of 1994.Around this time, some rather unexpected storm clouds formed
on the horizon as Novell and U.C. Berkeley settled their
long-running lawsuit over the legal status of the Berkeley Net/2
tape. A condition of that settlement was U.C. Berkeley's
concession that large parts of Net/2 were encumbered
code and the property of Novell, who had in turn acquired it from
AT&T some time previously. What Berkeley got in return was
Novell's blessing that the 4.4BSD-Lite release, when
it was finally released, would be declared unencumbered and all
existing Net/2 users would be strongly encouraged to switch. This
included FreeBSD, and the project was given until the end of July
1994 to stop shipping its own Net/2 based product. Under the
terms of that agreement, the project was allowed one last release
before the deadline, that release being FreeBSD 1.1.5.1.FreeBSD then set about the arduous task of literally
re-inventing itself from a completely new and rather incomplete
set of 4.4BSD-Lite bits. The Lite releases were
light in part because Berkeley's CSRG had removed large chunks of
code required for actually constructing a bootable running system
(due to various legal requirements) and the fact that the Intel
port of 4.4 was highly incomplete. It took the project until
November of 1994 to make this transition, at which point it
released FreeBSD 2.0 to the net and on CDROM (in late December).
Despite being still more than a little rough around the edges,
the release was a significant success and was followed by the
more robust and easier to install FreeBSD 2.0.5 release in June of
1995.We released FreeBSD 2.1.5 in August of 1996, and it appeared
to be popular enough among the ISP and commercial communities that
another release along the 2.1-STABLE branch was merited. This was
FreeBSD 2.1.7.1, released in February 1997 and capping the end of
mainstream development on 2.1-STABLE. Now in maintenance mode,
only security enhancements and other critical bug fixes will be
done on this branch (RELENG_2_1_0).FreeBSD 2.2 was branched from the development mainline
(-CURRENT) in November 1996 as the RELENG_2_2
branch, and the first full release (2.2.1) was released in April
1997. Further releases along the 2.2 branch were done in the
summer and fall of '97, the last of which (2.2.8) appeared in
November 1998. The first official 3.0 release appeared in
October 1998 and spelled the beginning of the end for the 2.2
branch.The tree branched again on Jan 20, 1999, leading to the
4.0-CURRENT and 3.X-STABLE branches. From 3.X-STABLE, 3.1 was
released on February 15, 1999, 3.2 on May 15, 1999, 3.3 on
September 16, 1999, 3.4 on December 20, 1999, and 3.5 on
June 24, 2000, which was followed a few days later by a minor
point release update to 3.5.1, to incorporate some last-minute
security fixes to Kerberos. This will be the final release in the
3.X branch.There was another branch on March 13, 2000, which saw the
emergence of the 5.0-CURRENT and 4.X-STABLE branches. The only
release from this branch so far is &rel.current;-RELEASE.Long-term development projects continue to take place in the
5.0-CURRENT branch, and SNAPshot releases of 5.0 on CDROM (and, of
course, on the net) are continually made available as work
progresses.FreeBSD Project GoalsContributed by &a.jkh;.The goals of the FreeBSD Project are to provide software that
may be used for any purpose and without strings attached. Many of
us have a significant investment in the code (and project) and
would certainly not mind a little financial compensation now and
then, but we are definitely not prepared to insist on it. We
believe that our first and foremost mission is to
provide code to any and all comers, and for whatever purpose, so
that the code gets the widest possible use and provides the widest
possible benefit. This is, I believe, one of the most fundamental
goals of Free Software and one that we enthusiastically
support.That code in our source tree which falls under the GNU General
Public License (GPL) or Library General Public License (LGPL)
comes with slightly more strings attached, though at least on the
side of enforced access rather than the usual opposite. Due to
the additional complexities that can evolve in the commercial use
of GPL software we do, however, prefer software submitted under
the more relaxed BSD copyright when it's a reasonable option to
do so.The FreeBSD Development ModelContributed by &a.asami;.The development of FreeBSD is a very open and flexible
process, FreeBSD being literally built from the contributions of
hundreds of people around the world, as can be seen from our
list of contributors. We are
constantly on the lookout for new developers and ideas, and those
interested in becoming more closely involved with the project
need simply contact us at the &a.hackers;. The &a.announce; is
also available to those wishing to make other FreeBSD users aware
of major areas of work.Useful things to know about the FreeBSD project and its
development process, whether working independently or in close
cooperation:The CVS repositoryThe central source tree for FreeBSD is maintained by
CVS
(Concurrent Version System), a freely available source code
control tool that comes bundled with FreeBSD. The primary
CVS
repository resides on a machine in Concord CA, USA
from where it is replicated to numerous mirror machines
throughout the world. The CVS tree, as well as the -CURRENT and -STABLE trees which are checked out
of it, can be easily replicated to your own machine as well.
Please refer to the Synchronizing
your source tree section for more information on
doing this.The committers listThe committers
are the people who have write access to
the CVS tree, and are thus authorized to make modifications
to the FreeBSD source (the term committer
comes from the &man.cvs.1; commit
command, which is used to bring new changes into the CVS
repository). The best way of making submissions for review
by the committers list is to use the &man.send-pr.1;
command, though if something appears to be jammed in the
system then you may also reach them by sending mail to
cvs-committers@FreeBSD.org.The FreeBSD core teamThe FreeBSD core team
would be equivalent to the board of directors if the FreeBSD
Project were a company. The primary task of the core team
is to make sure the project, as a whole, is in good shape
and is heading in the right directions. Inviting dedicated
and responsible developers to join our group of committers
is one of the functions of the core team, as is the
recruitment of new core team members as others move on. Most
current members of the core team started as committers whose
addiction to the project got the better of them.Some core team members also have specific areas of responsibility, meaning
that they are committed to ensuring that some large portion
of the system works as advertised.Most members of the core team are volunteers when it
comes to FreeBSD development and do not benefit from the
project financially, so commitment should
also not be misconstrued as meaning guaranteed
support. The board of directors
analogy above is not actually very accurate, and it may be
more suitable to say that these are the people who gave up
their lives in favor of FreeBSD against their better
judgment! ;-)Outside contributorsLast, but definitely not least, the largest group of
developers are the users themselves who provide feedback and
bug fixes to us on an almost constant basis. The primary
way of keeping in touch with FreeBSD's more non-centralized
development is to subscribe to the &a.hackers; (see mailing list info) where
such things are discussed.The list of
those who have contributed something, which made its way into
our source tree, is a long and growing one, so why not join
it by contributing something back to FreeBSD today?
:-)Providing code is not the only way of contributing to
the project; for a more complete list of things that need
doing, please refer to the how to
contribute section in this handbook.In summary, our development model is organized as a loose set
of concentric circles. The centralized model is designed for the
convenience of the users of FreeBSD, who are
thereby provided with an easy way of tracking one central code
base, not to keep potential contributors out! Our desire is to
present a stable operating system with a large set of coherent
application programs that the users
can easily install and use, and this model works very well in
accomplishing that.All we ask of those who would join us as FreeBSD developers is
some of the same dedication its current people have to its
continued success!The Current FreeBSD Release
- FreeBSD is a freely available, full source 4.4BSD-Lite2 based
+ FreeBSD is a freely available, full source 4.4BSD-Lite based
release for Intel i386, i486, Pentium, Pentium Pro, Celeron,
Pentium II, Pentium III (or compatible) and DEC Alpha based computer
systems. It is based primarily on software from U.C. Berkeley's
CSRG group, with some enhancements from NetBSD, OpenBSD, 386BSD, and
the Free Software Foundation.Since our release of FreeBSD 2.0 in late 94, the performance,
feature set, and stability of FreeBSD has improved dramatically.
The largest change is a revamped virtual memory system with a merged
VM/file buffer cache that not only increases performance, but also
reduces FreeBSD's memory footprint, making a 5MB configuration a
more acceptable minimum. Other enhancements include full NIS client
and server support, transaction TCP support, dial-on-demand PPP,
integrated DHCP support, an improved SCSI subsystem, ISDN support,
support for ATM, FDDI, Fast and Gigabit Ethernet (1000Mbit)
adapters, improved support for the latest Adaptec controllers, and
many hundreds of bug fixes.We have also taken the comments and suggestions of many of our
users to heart and have attempted to provide what we hope is a more
sane and easily understood installation process. Your feedback on
this (constantly evolving) process is especially welcome!In addition to the base distributions, FreeBSD offers a
ported software collection with thousands of commonly sought-after
programs. By mid-January 2000, there were nearly 3000 ports! The
list of ports ranges from http (WWW) servers, to games, languages,
editors, and almost everything in between. The entire ports
collection requires approximately 50MB of storage, all ports being
expressed as deltas to their original sources. This
makes it much easier for us to update ports, and greatly reduces
the disk space demands made by the older 1.0 ports collection. To
compile a port, you simply change to the directory of the program
you wish to install, type make install, and let
the system do the rest. The full original distribution for each
port you build is retrieved dynamically off the CDROM or a local FTP
site, so you need only enough disk space to build the ports you
want. Almost every port is also provided as a pre-compiled
package, which can be installed with a simple command
(pkg_add) by those who do not wish to compile their own ports from
source.A number of additional documents which you may find very helpful
in the process of installing and using FreeBSD may now also be found
in the /usr/share/doc directory on any machine
running FreeBSD 2.1 or later. You may view the locally installed
manuals with any HTML capable browser using the following
URLs:The FreeBSD Handbookfile:/usr/share/doc/handbook/index.htmlThe FreeBSD FAQfile:/usr/share/doc/faq/index.htmlYou can also view the master (and most frequently updated)
copies at http://www.FreeBSD.org/.
diff --git a/en_US.ISO_8859-1/books/handbook/introduction/chapter.sgml b/en_US.ISO_8859-1/books/handbook/introduction/chapter.sgml
index a9dd789058..b0d6f443c6 100644
--- a/en_US.ISO_8859-1/books/handbook/introduction/chapter.sgml
+++ b/en_US.ISO_8859-1/books/handbook/introduction/chapter.sgml
@@ -1,704 +1,704 @@
IntroductionRestructured, reorganized, and parts rewritten by
&a.jim;, 17 January 2000.SynopsisThank you for your interest in FreeBSD! The following chapter
covers various items about the FreeBSD Project, such as its history,
goals, development model, and so on.
- FreeBSD is a 4.4BSD-Lite2 based operating system for the Intel
+ FreeBSD is a 4.4BSD-Lite based operating system for the Intel
architecture (x86) and DEC Alpha based systems. Ports to other
architectures are also underway. For a brief overview of FreeBSD,
see the next section. You can also
read about the history of FreeBSD,
or the current release. If you
are interested in contributing something to the Project (code,
hardware, unmarked bills), see the contributing to FreeBSD section.Welcome to FreeBSD!Since you are still here reading this, you most likely have some
idea as to what FreeBSD is and what it can do for you. If you are
new to FreeBSD, read on for more information.What is FreeBSD?In general, FreeBSD is a state-of-the-art operating system
- based on 4.4BSD-Lite2. It runs on computer systems based on the
+ based on 4.4BSD-Lite. It runs on computer systems based on the
Intel architecture (x86), and also the DEC Alpha
architecture.FreeBSD is used to power some of the biggest sites on the
Internet, including:Yahoo!HotmailApacheBe, Inc.Blue Mountain
ArtsPair
NetworksWhistle
CommunicationsWalnut Creek
CDROMand many more.What can FreeBSD do?FreeBSD has many noteworthy features. Some of these
are:Preemptive multitasking with
dynamic priority adjustment to ensure smooth and fair
sharing of the computer between applications and users, even
under the heaviest of loads.Multi-user facilities which allow many
people to use a FreeBSD system simultaneously for a variety
of things. This means, for example, that system peripherals
such as printers and tape drives are properly shared between
all users on the system or the network and that individual
resource limits can be placed on users or groups of users,
protecting critical system resources from over-use.Strong TCP/IP networking with
support for industry standards such as SLIP, PPP, NFS, DHCP,
and NIS. This means that your FreeBSD machine can
inter-operate easily with other systems as well as act as an
enterprise server, providing vital functions such as NFS
(remote file access) and e-mail services or putting your
organization on the Internet with WWW, FTP, routing and
firewall (security) services.Memory protection ensures that
applications (or users) cannot interfere with each other. One
application crashing will not affect others in any way.FreeBSD is a 32-bit operating
system (64-bit on the Alpha) and was
designed as such from the ground up.The industry standard X Window System
(X11R6) provides a graphical user interface (GUI) for the cost
of a common VGA card and monitor and comes with full
sources.Binary compatibility with many
programs built for Linux, SCO, SVR4, BSDI and NetBSD.Thousands of ready-to-run
applications are available from the FreeBSD
ports and packages
collection. Why search the net when you can find it all right
here?Thousands of additional and
easy-to-port applications are available
on the Internet. FreeBSD is source code compatible with most
popular commercial Unix systems and thus most applications
require few, if any, changes to compile.Demand paged virtual memory and
merged VM/buffer cache design efficiently
satisfies applications with large appetites for memory while
still maintaining interactive response to other users.SMP support for machines with
multiple CPUs (Intel only).A full complement of C,
C++, Fortran, and
Perl development tools.
Many additional languages for advanced research
and development are also available in the ports and packages
collection.Source code for the entire system
means you have the greatest degree of control over your
environment. Why be locked into a proprietary solution
at the mercy of your vendor when you can have a truly Open
System?Extensive on-line
documentation.And many more!
- FreeBSD is based on the 4.4BSD-Lite2 release from Computer
+ FreeBSD is based on the 4.4BSD-Lite release from Computer
Systems Research Group (CSRG) at the University of California at
Berkeley, and carries on the distinguished tradition of BSD
systems development. In addition to the fine work provided by
CSRG, the FreeBSD Project has put in many thousands of hours in
fine tuning the system for maximum performance and reliability in
real-life load situations. As many of the commercial giants
struggle to field PC operating systems with such features,
performance and reliability, FreeBSD can offer them
now!The applications to which FreeBSD can be put are truly
limited only by your own imagination. From software development
to factory automation, inventory control to azimuth correction of
remote satellite antennae; if it can be done with a commercial
UNIX product then it is more than likely that you can do it with
FreeBSD, too! FreeBSD also benefits significantly from the
literally thousands of high quality applications developed by
research centers and universities around the world, often
available at little to no cost. Commercial applications are also
available and appearing in greater numbers every day.Because the source code for FreeBSD itself is generally
available, the system can also be customized to an almost unheard
of degree for special applications or projects, and in ways not
generally possible with operating systems from most major
commercial vendors. Here is just a sampling of some of the
applications in which people are currently using FreeBSD:Internet Services: The robust TCP/IP
networking built into FreeBSD makes it an ideal platform for a
variety of Internet services such as:FTP serversWorld Wide Web servers (standard or secure
[SSL])Firewalls and NAT (IP masquerading)
gateways.Electronic Mail serversUSENET News or Bulletin Board SystemsAnd more...With FreeBSD, you can easily start out small with an
inexpensive 386 class PC and upgrade all the way up to a
quad-processor Xeon with RAID storage as your enterprise
grows.Education: Are you a student of
computer science or a related engineering field? There is no
better way of learning about operating systems, computer
architecture and networking than the hands on, under the hood
experience that FreeBSD can provide. A number of freely
available CAD, mathematical and graphic design packages also
make it highly useful to those whose primary interest in a
computer is to get other work
done!Research: With source code for the
entire system available, FreeBSD is an excellent platform for
research in operating systems as well as other branches of
computer science. FreeBSD's freely available nature also makes
it possible for remote groups to collaborate on ideas or
shared development without having to worry about special
licensing agreements or limitations on what may be discussed
in open forums.Networking: Need a new router? A
name server (DNS)? A firewall to keep people out of your
internal network? FreeBSD can easily turn that unused 386 or
486 PC sitting in the corner into an advanced router with
sophisticated packet-filtering capabilities.X Window workstation: FreeBSD is a
fine choice for an inexpensive X terminal solution, either
using the freely available XFree86 server or one of the
excellent commercial servers provided by X Inside. Unlike an
X terminal, FreeBSD allows many applications to be run
locally, if desired, thus relieving the burden on a central
server. FreeBSD can even boot diskless, making
individual workstations even cheaper and easier to
administer.Software Development: The basic
FreeBSD system comes with a full complement of development
tools including the renowned GNU C/C++ compiler and
debugger.FreeBSD is available in both source and binary form on CDROM
and via anonymous FTP. See Obtaining
FreeBSD for more details.About the FreeBSD ProjectThe following section provides some background information on
the project, including a brief history, project goals, and the
development model of the project.A Brief History of FreeBSDContributed by &a.jkh;.The FreeBSD project had its genesis in the early part of 1993,
partially as an outgrowth of the Unofficial 386BSD
Patchkit by the patchkit's last 3 coordinators: Nate
Williams, Rod Grimes and myself.Our original goal was to produce an intermediate snapshot of
386BSD in order to fix a number of problems with it that the
patchkit mechanism just was not capable of solving. Some of you
may remember the early working title for the project being
386BSD 0.5 or 386BSD Interim in
reference to that fact.386BSD was Bill Jolitz's operating system, which had been up
to that point suffering rather severely from almost a year's worth
of neglect. As the patchkit swelled ever more uncomfortably with
each passing day, we were in unanimous agreement that something
had to be done and decided to try and assist Bill by providing
this interim cleanup snapshot. Those plans came to
a rude halt when Bill Jolitz suddenly decided to withdraw his
sanction from the project without any clear indication of what
would be done instead.It did not take us long to decide that the goal remained
worthwhile, even without Bill's support, and so we adopted the
name FreeBSD, coined by David Greenman. Our initial
objectives were set after consulting with the system's current
users and, once it became clear that the project was on the road
to perhaps even becoming a reality, I contacted Walnut Creek CDROM
with an eye towards improving FreeBSD's distribution channels for
those many unfortunates without easy access to the Internet.
Walnut Creek CDROM not only supported the idea of distributing
FreeBSD on CD but also went so far as to provide the project with a
machine to work on and a fast Internet connection. Without Walnut
Creek CDROM's almost unprecedented degree of faith in what was, at
the time, a completely unknown project, it is quite unlikely that
FreeBSD would have gotten as far, as fast, as it has today.The first CDROM (and general net-wide) distribution was
FreeBSD 1.0, released in December of 1993. This was based on the
4.3BSD-Lite (Net/2) tape from U.C. Berkeley, with
many components also provided by 386BSD and the Free Software
Foundation. It was a fairly reasonable success for a first
offering, and we followed it with the highly successful FreeBSD
1.1 release in May of 1994.Around this time, some rather unexpected storm clouds formed
on the horizon as Novell and U.C. Berkeley settled their
long-running lawsuit over the legal status of the Berkeley Net/2
tape. A condition of that settlement was U.C. Berkeley's
concession that large parts of Net/2 were encumbered
code and the property of Novell, who had in turn acquired it from
AT&T some time previously. What Berkeley got in return was
Novell's blessing that the 4.4BSD-Lite release, when
it was finally released, would be declared unencumbered and all
existing Net/2 users would be strongly encouraged to switch. This
included FreeBSD, and the project was given until the end of July
1994 to stop shipping its own Net/2 based product. Under the
terms of that agreement, the project was allowed one last release
before the deadline, that release being FreeBSD 1.1.5.1.FreeBSD then set about the arduous task of literally
re-inventing itself from a completely new and rather incomplete
set of 4.4BSD-Lite bits. The Lite releases were
light in part because Berkeley's CSRG had removed large chunks of
code required for actually constructing a bootable running system
(due to various legal requirements) and the fact that the Intel
port of 4.4 was highly incomplete. It took the project until
November of 1994 to make this transition, at which point it
released FreeBSD 2.0 to the net and on CDROM (in late December).
Despite being still more than a little rough around the edges,
the release was a significant success and was followed by the
more robust and easier to install FreeBSD 2.0.5 release in June of
1995.We released FreeBSD 2.1.5 in August of 1996, and it appeared
to be popular enough among the ISP and commercial communities that
another release along the 2.1-STABLE branch was merited. This was
FreeBSD 2.1.7.1, released in February 1997 and capping the end of
mainstream development on 2.1-STABLE. Now in maintenance mode,
only security enhancements and other critical bug fixes will be
done on this branch (RELENG_2_1_0).FreeBSD 2.2 was branched from the development mainline
(-CURRENT) in November 1996 as the RELENG_2_2
branch, and the first full release (2.2.1) was released in April
1997. Further releases along the 2.2 branch were done in the
summer and fall of '97, the last of which (2.2.8) appeared in
November 1998. The first official 3.0 release appeared in
October 1998 and spelled the beginning of the end for the 2.2
branch.The tree branched again on Jan 20, 1999, leading to the
4.0-CURRENT and 3.X-STABLE branches. From 3.X-STABLE, 3.1 was
released on February 15, 1999, 3.2 on May 15, 1999, 3.3 on
September 16, 1999, 3.4 on December 20, 1999, and 3.5 on
June 24, 2000, which was followed a few days later by a minor
point release update to 3.5.1, to incorporate some last-minute
security fixes to Kerberos. This will be the final release in the
3.X branch.There was another branch on March 13, 2000, which saw the
emergence of the 5.0-CURRENT and 4.X-STABLE branches. The only
release from this branch so far is &rel.current;-RELEASE.Long-term development projects continue to take place in the
5.0-CURRENT branch, and SNAPshot releases of 5.0 on CDROM (and, of
course, on the net) are continually made available as work
progresses.FreeBSD Project GoalsContributed by &a.jkh;.The goals of the FreeBSD Project are to provide software that
may be used for any purpose and without strings attached. Many of
us have a significant investment in the code (and project) and
would certainly not mind a little financial compensation now and
then, but we are definitely not prepared to insist on it. We
believe that our first and foremost mission is to
provide code to any and all comers, and for whatever purpose, so
that the code gets the widest possible use and provides the widest
possible benefit. This is, I believe, one of the most fundamental
goals of Free Software and one that we enthusiastically
support.That code in our source tree which falls under the GNU General
Public License (GPL) or Library General Public License (LGPL)
comes with slightly more strings attached, though at least on the
side of enforced access rather than the usual opposite. Due to
the additional complexities that can evolve in the commercial use
of GPL software we do, however, prefer software submitted under
the more relaxed BSD copyright when it's a reasonable option to
do so.The FreeBSD Development ModelContributed by &a.asami;.The development of FreeBSD is a very open and flexible
process, FreeBSD being literally built from the contributions of
hundreds of people around the world, as can be seen from our
list of contributors. We are
constantly on the lookout for new developers and ideas, and those
interested in becoming more closely involved with the project
need simply contact us at the &a.hackers;. The &a.announce; is
also available to those wishing to make other FreeBSD users aware
of major areas of work.Useful things to know about the FreeBSD project and its
development process, whether working independently or in close
cooperation:The CVS repositoryThe central source tree for FreeBSD is maintained by
CVS
(Concurrent Version System), a freely available source code
control tool that comes bundled with FreeBSD. The primary
CVS
repository resides on a machine in Concord CA, USA
from where it is replicated to numerous mirror machines
throughout the world. The CVS tree, as well as the -CURRENT and -STABLE trees which are checked out
of it, can be easily replicated to your own machine as well.
Please refer to the Synchronizing
your source tree section for more information on
doing this.The committers listThe committers
are the people who have write access to
the CVS tree, and are thus authorized to make modifications
to the FreeBSD source (the term committer
comes from the &man.cvs.1; commit
command, which is used to bring new changes into the CVS
repository). The best way of making submissions for review
by the committers list is to use the &man.send-pr.1;
command, though if something appears to be jammed in the
system then you may also reach them by sending mail to
cvs-committers@FreeBSD.org.The FreeBSD core teamThe FreeBSD core team
would be equivalent to the board of directors if the FreeBSD
Project were a company. The primary task of the core team
is to make sure the project, as a whole, is in good shape
and is heading in the right directions. Inviting dedicated
and responsible developers to join our group of committers
is one of the functions of the core team, as is the
recruitment of new core team members as others move on. Most
current members of the core team started as committers whose
addiction to the project got the better of them.Some core team members also have specific areas of responsibility, meaning
that they are committed to ensuring that some large portion
of the system works as advertised.Most members of the core team are volunteers when it
comes to FreeBSD development and do not benefit from the
project financially, so commitment should
also not be misconstrued as meaning guaranteed
support. The board of directors
analogy above is not actually very accurate, and it may be
more suitable to say that these are the people who gave up
their lives in favor of FreeBSD against their better
judgment! ;-)Outside contributorsLast, but definitely not least, the largest group of
developers are the users themselves who provide feedback and
bug fixes to us on an almost constant basis. The primary
way of keeping in touch with FreeBSD's more non-centralized
development is to subscribe to the &a.hackers; (see mailing list info) where
such things are discussed.The list of
those who have contributed something, which made its way into
our source tree, is a long and growing one, so why not join
it by contributing something back to FreeBSD today?
:-)Providing code is not the only way of contributing to
the project; for a more complete list of things that need
doing, please refer to the how to
contribute section in this handbook.In summary, our development model is organized as a loose set
of concentric circles. The centralized model is designed for the
convenience of the users of FreeBSD, who are
thereby provided with an easy way of tracking one central code
base, not to keep potential contributors out! Our desire is to
present a stable operating system with a large set of coherent
application programs that the users
can easily install and use, and this model works very well in
accomplishing that.All we ask of those who would join us as FreeBSD developers is
some of the same dedication its current people have to its
continued success!The Current FreeBSD Release
- FreeBSD is a freely available, full source 4.4BSD-Lite2 based
+ FreeBSD is a freely available, full source 4.4BSD-Lite based
release for Intel i386, i486, Pentium, Pentium Pro, Celeron,
Pentium II, Pentium III (or compatible) and DEC Alpha based computer
systems. It is based primarily on software from U.C. Berkeley's
CSRG group, with some enhancements from NetBSD, OpenBSD, 386BSD, and
the Free Software Foundation.Since our release of FreeBSD 2.0 in late 94, the performance,
feature set, and stability of FreeBSD has improved dramatically.
The largest change is a revamped virtual memory system with a merged
VM/file buffer cache that not only increases performance, but also
reduces FreeBSD's memory footprint, making a 5MB configuration a
more acceptable minimum. Other enhancements include full NIS client
and server support, transaction TCP support, dial-on-demand PPP,
integrated DHCP support, an improved SCSI subsystem, ISDN support,
support for ATM, FDDI, Fast and Gigabit Ethernet (1000Mbit)
adapters, improved support for the latest Adaptec controllers, and
many hundreds of bug fixes.We have also taken the comments and suggestions of many of our
users to heart and have attempted to provide what we hope is a more
sane and easily understood installation process. Your feedback on
this (constantly evolving) process is especially welcome!In addition to the base distributions, FreeBSD offers a
ported software collection with thousands of commonly sought-after
programs. By mid-January 2000, there were nearly 3000 ports! The
list of ports ranges from http (WWW) servers, to games, languages,
editors, and almost everything in between. The entire ports
collection requires approximately 50MB of storage, all ports being
expressed as deltas to their original sources. This
makes it much easier for us to update ports, and greatly reduces
the disk space demands made by the older 1.0 ports collection. To
compile a port, you simply change to the directory of the program
you wish to install, type make install, and let
the system do the rest. The full original distribution for each
port you build is retrieved dynamically off the CDROM or a local FTP
site, so you need only enough disk space to build the ports you
want. Almost every port is also provided as a pre-compiled
package, which can be installed with a simple command
(pkg_add) by those who do not wish to compile their own ports from
source.A number of additional documents which you may find very helpful
in the process of installing and using FreeBSD may now also be found
in the /usr/share/doc directory on any machine
running FreeBSD 2.1 or later. You may view the locally installed
manuals with any HTML capable browser using the following
URLs:The FreeBSD Handbookfile:/usr/share/doc/handbook/index.htmlThe FreeBSD FAQfile:/usr/share/doc/faq/index.htmlYou can also view the master (and most frequently updated)
copies at http://www.FreeBSD.org/.