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19bb1886be
This uses more generic wording in the FreeBSD installer, when offering the user to use the system booted without running the installer. The updated wording is also reflected in freebsd-version(1). Reviewed by: emaste Sponsored by: The FreeBSD Foundation Differential revision: https://reviews.freebsd.org/D43233
132 lines
4.0 KiB
Groff
132 lines
4.0 KiB
Groff
.\"-
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.\" Copyright (c) 2013 Dag-Erling Smørgrav
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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 provided 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 AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY 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, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.Dd October 1, 2021
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.Dt FREEBSD-VERSION 1
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.Os
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.Sh NAME
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.Nm freebsd-version
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.Nd print the version and patch level of the installed system
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.Sh SYNOPSIS
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.Nm
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.Op Fl kru
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.Op Fl j Ar jail
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.Sh DESCRIPTION
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The
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.Nm
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utility makes a best effort to determine the version and patch level
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of the installed kernel and / or userland.
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.Pp
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The following options are available:
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.Bl -tag -width Fl
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.It Fl k
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Print the version and patch level of the installed kernel.
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Unlike
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.Xr uname 1 ,
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if a new kernel has been installed but the system has not yet
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rebooted,
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.Nm
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will print the version and patch level of the new kernel.
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.It Fl r
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Print the version and patch level of the running kernel.
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Unlike
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.Xr uname 1 ,
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this is unaffected by environment variables.
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.It Fl u
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Print the version and patch level of the installed userland.
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These are hardcoded into
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.Nm
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during the build.
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.It Fl j Ar jail
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Print the version and patch level of the installed userland in the
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given jail specified by
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.Va jid
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or
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.Va name .
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This option can be specified multiple times.
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.El
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.Pp
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If several of the above options are specified,
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.Nm
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will print the installed kernel version first, then the running kernel
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version, next the userland version, and finally the userland version
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of the specified jails, on separate lines.
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If neither is specified, it will print the userland version only.
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.Sh IMPLEMENTATION NOTES
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The
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.Nm
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utility should provide the correct answer in the vast majority of
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cases, including on systems kept up-to-date using
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.Xr freebsd-update 8 ,
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which does not update the kernel version unless the kernel itself was
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affected by the latest patch.
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.Pp
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To determine the name (and hence the location) of a custom kernel, the
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.Nm
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utility will attempt to parse
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.Pa /boot/defaults/loader.conf
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and
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.Pa /boot/loader.conf ,
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looking for definitions of the
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.Va kernel
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and
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.Va bootfile
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variables, both with a default value of
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.Dq kernel .
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It may however fail to locate the correct kernel if either or both of
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these variables are defined in a non-standard location, such as in
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.Pa /boot/loader.rc .
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.Sh ENVIRONMENT
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.Bl -tag -width ROOT
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.It Ev ROOT
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Path to the root of the filesystem in which to look for
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.Pa loader.conf
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and the kernel.
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.El
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.Sh EXAMPLES
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To determine the version of the currently running userland:
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.Bd -literal -offset indent
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/bin/freebsd-version -u
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.Ed
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.Pp
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To inspect a system being repaired using a live system:
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.Bd -literal -offset indent
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mount -rt ufs /dev/ada0p2 /mnt
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env ROOT=/mnt /mnt/bin/freebsd-version -ku
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.Ed
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.Sh SEE ALSO
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.Xr uname 1 ,
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.Xr loader.conf 5
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.Sh HISTORY
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The
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.Nm
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command appeared in
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.Fx 10.0 .
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.Sh AUTHORS
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The
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.Nm
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utility and this manual page were written by
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.An Dag-Erling Sm\(/orgrav Aq Mt des@FreeBSD.org .
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