freebsd-nq/share/doc/handbook/current.sgml
1995-10-16 09:01:52 +00:00

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<!-- $Id: current.sgml,v 1.5 1995/09/27 00:46:16 jmz Exp $ -->
<!-- The FreeBSD Documentation Project -->
<chapt><heading>Staying current with FreeBSD<label id="current"></heading>
<p><em>Contributed by &a.jkh;.</em>
<!--
THE FREEBSD CURRENT POLICY
Last updated: $Date: 1995/09/27 00:46:16 $
This document attempts to explain the rationale behind FreeBSD-current,
what you should expect should you decide to run it, and states some
prerequisites for making sure the process goes as smoothly as possible.
-->
<sect><heading>What is FreeBSD-current?</heading>
<p>FreeBSD-current is, quite literally, nothing more than a daily snapshot of
the working sources for FreeBSD. These include work in progress, experimental
changes, and transitional mechanisms that may or may not be present in
the next official release of the software. While many of us compile
almost daily from FreeBSD-current sources, there are periods of time when
the sources are literally uncompilable. These problems are generally resolved
as expeditiously as possible, but whether or not FreeBSD-current sources bring
disaster or greatly desired functionality can literally be a matter of which
part of any given 24 hour period you grabbed them in!
Under certain circumstances we will sometimes make binaries for parts of
FreeBSD-current available, but only because we're interested in getting
something tested, not because we're in the business of providing binary
releases of current. If we don't offer, please don't ask! It takes far
too much time to do this as a general task.
<sect><heading>Who needs FreeBSD-current?</heading>
<p>FreeBSD-current is made generally available for 3 primary interest groups:
<enum>
<item> Members of the FreeBSD group who are actively working on one
part or another of the source tree and for whom keeping `current'
is an absolute requirement.
<item> Members of the FreeBSD group who are active ALPHA or BETA testers
and willing to spend time working through problems in order to
ensure that FreeBSD-current remains as sane as possible. These
are also people who wish to make topical suggestions on changes
and the general direction of FreeBSD.
<item> Peripheral members of the FreeBSD (or some other) group who merely
wish to keep an eye on things and use the current sources for
reference purposes (e.g. for <em>reading</em>, not running). These
people also make the occasional comment or contribute code.
</enum>
<sect><heading>What is FreeBSD-current <em>NOT</em>?</heading>
<p><enum>
<item> A fast-track to getting pre-release bits because there's something
you heard was pretty cool in there and you want to be the first on
your block to have it.
<item> A quick way of getting bug fixes.
<item> In any way ``officially supported'' by us.
We do our best to help people genuinely in one of the 3
``legitimate'' FreeBSD-current categories, but we simply <em>do not
have the time</em> to help every person who jumps into FreeBSD-current
with more enthusiasm than knowledge of how to deal with
experimental system software. This is not because we're mean and
nasty people who don't like helping people out (we wouldn't even be
doing FreeBSD if we were), it's literally because we can't answer
400 messages a day <em>and</em> actually work on FreeBSD! I'm sure if
given the choice between having us answer lots of questions or
continue to improve FreeBSD, most of you would vote for us
improving it.
</enum>
<sect><heading>Using FreeBSD-current</heading>
<p><enum> <item> Join the freebsd-current and cvs-all
mailing lists. This is not just a good idea, it's
<em>essential</em>. If you aren't on freebsd-current, you
won't read the comments that people are making about the
current state of the system and thus will end up stumbling
over a lot of problems that others have already found and
solved. Even more importantly, you will miss out on
potentially critical information (e.g. ``Yo, Everybody!
Before you rebuild <tt>/usr/src</tt>, you <em>must</em>
rebuild the kernel or your system will crash horribly!").
The cvs-all mailing list will allow you to see the commit log
entry for each change as it's made. This can also contain
important information, and will let you know what parts of
the system are being actively changed.
To join these lists, send mail to `majordomo@FreeBSD.ORG'
and say:
<verb>
subscribe current
subscribe cvs-all
</verb>
In the body of your message. Optionally, you can also say `help'
and Majordomo will send you full help on how to subscribe and
unsubscribe to the various other mailing lists we support.
<item> Grab the sources from ftp.FreeBSD.ORG. You can do this in
three ways:
<enum>
<item> Using the CTM facility described below. Unless you
have a good TCP/IP connection at a flat rate, this is
the way to do it.
<item> Use the CMU `sup' program (Software Update
Protocol), also described below.
This is the second most recommended method, since it allows
you to grab the entire collection once and then only what's
changed from then on. Many people run sup from cron
and keep their sources up-to-date automatically.
<item> Use ftp. The source tree for FreeBSD-current is always
"exported" on:
<verb>
ftp.FreeBSD.ORG:~ftp/pub/FreeBSD/FreeBSD-current
</verb>
We use `wu-ftpd' which allows compressed/tar'd grabbing
of whole trees. e.g. you see:
<verb>
usr.bin/lex
</verb>
You can do:
<verb>
ftp> cd usr.bin
ftp> get lex.tar.Z
</verb>
And it will get the whole directory for you as a compressed
tar file.
</enum>
<item> Essentially, if you need rapid on-demand access to the source and
communications bandwidth is not a consideration, use sup or ftp.
Otherwise, use CTM.
<item> If you're grabbing the sources to run, and not just look at,
then grab <em>all</em> of current, not just selected portions. The
reason for this is that various parts of the source depend on
updates elsewhere and trying to compile just a subset is almost
guaranteed to get you into trouble.
<item> Before compiling current, read the Makefile in /usr/src
carefully. You'll see one-time targets like `bootstrapld'
which <em><bf>must</bf></em> be run as part of the upgrading process. Reading
freebsd-hackers will keep you up-to-date on other bootstrapping
procedures that sometimes become necessary as we move towards
the next release.
<item> Be active! If you're running FreeBSD-current, we want to know
what you have to say about it, especially if you have suggestions
for enhancements or bug fixes. Suggestions with accompanying code
are received most enthusiastically!
</enum>
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