2006-08-31 09:51:34 +00:00
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.\"-
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.\" Copyright 2006 Colin Percival
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.\" All rights reserved
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted providing that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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.\" DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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.\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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.\" IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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.\" POSSIBILITY OF SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd August 30, 2006
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.Dt FREEBSD-UPDATE 8
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.Os FreeBSD
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.Sh NAME
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.Nm freebsd-update
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.Nd fetch and install binary updates to FreeBSD
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.Sh SYNOPSIS
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.Nm
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.Op Fl b Ar basedir
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.Op Fl d Ar workdir
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.Op Fl f Ar conffile
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.Op Fl k Ar KEY
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.Op Fl s Ar server
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.Op Fl t Ar address
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.Cm command ...
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.Sh DESCRIPTION
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The
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.Nm
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tool is used to fetch, install, and rollback binary
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updates to the FreeBSD base system.
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2006-12-26 05:49:06 +00:00
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Note that updates are only available if they are being built for the
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FreeBSD release and architecture being used; in particular, the
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.Fx
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Security Team only builds updates for releases shipped in binary form
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by the
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.Fx
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Release Engineering Team, e.g.,
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.Fx
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6.1-RELEASE and
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.Fx
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6.2-RC1, but not
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.Fx
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6.2-STABLE or
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.Fx
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7.0-CURRENT.
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2006-08-31 09:51:34 +00:00
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.Sh OPTIONS
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The following options are supported
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.Bl -tag -width "-f conffile"
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.It Fl b Ar basedir
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Operate on a system mounted at
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.Ar basedir .
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(default:
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.Pa / ,
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or as given in the configuration file.)
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.It Fl d Ar workdir
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Store working files in
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.Ar workdir .
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(default:
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.Pa /var/db/freebsd-update/ ,
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or as given in the configuration file.)
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.It Fl f Ar conffile
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Read configuration options from
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.Ar conffile .
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(default:
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.Pa /etc/freebsd-update.conf )
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.It Fl k Ar KEY
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Trust an RSA key with SHA256 of
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.Ar KEY .
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(default: read value from configuration file.)
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.It Fl s Ar server
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Fetch files from the specified server or server pool.
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(default: read value from configuration file.)
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.It Fl t Ar address
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Mail output of
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.Cm cron
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command, if any, to
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.Ar address .
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(default: root, or as given in the configuration file.)
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.El
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.Sh COMMANDS
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The
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.Cm command
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can be any one of the following:
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.Pp
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.Bl -tag -width "-f conffile"
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.It Cm fetch
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Based on the currently installed world and the configuration
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options set, fetch all available binary updates.
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.It Cm cron
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Sleep a random amount of time between 1 and 3600 seconds,
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then download updates as if the
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.Cm fetch
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command was used.
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If updates are downloaded, an email will be sent
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(to root or a different address if specified via the
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.Fl t
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option or in the configuration file).
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As the name suggests, this command is designed for running
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from
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.Xr cron 8 ;
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the random delay serves to minimize the probability that
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a large number of machines will simultaneously attempt to
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fetch updates.
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.It Cm install
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Install the most recently fetched updates.
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.It Cm rollback
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Uninstall the most recently installed updates.
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.El
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.Sh TIPS
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.Bl -bullet
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.It
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If your clock is set to local time, adding the line
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.Pp
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.Dl 0 3 * * * root /usr/sbin/freebsd-update cron
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.Pp
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to /etc/crontab will check for updates every night.
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2006-12-31 05:18:35 +00:00
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If your clock is set to UTC, please pick a random time
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2006-08-31 09:51:34 +00:00
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other than 3AM, to avoid overly imposing an uneven load
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on the server(s) hosting the updates.
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.El
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.Sh FILES
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.Bl -tag -width "/etc/freebsd-update.conf"
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.It /etc/freebsd-update.conf
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Default location of the
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.Nm
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configuration file.
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.It /var/db/freebsd-update/
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Default location where
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.Nm
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stores temporary files and downloaded updates.
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.El
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.Sh SEE ALSO
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.Xr freebsd-update.conf 5
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.Sh AUTHORS
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.An Colin Percival Aq cperciva@FreeBSD.org
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