6467506baf
Each boot, regenerate /var/run/os-release based on the currently running system. Create a /etc/os-release symlink pointing to this file (so that this doesn't create a new reason /etc can not be mounted read-only). This is compatible with what other systems do and is what the sysutil/os-release port attempted to do, but in an incomplete way. Linux, Solaris and DragonFly all implement this natively as well. The complete standard can be found at https://www.freedesktop.org/software/systemd/man/os-release.html Moving this to the base solves both the non-standard location problem with the port, as well as the lack of update of this file on system update. Bump __FreeBSD_version to 1300060 PR: 238953 Differential Revision: https://reviews.freebsd.org/D22271
131 lines
4.0 KiB
Groff
131 lines
4.0 KiB
Groff
.\" Copyright (c) 2019 M. Warner Losh.
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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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.\" $FreeBSD$
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.\"
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.Dd November 9, 2019
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.Dt OS-RELEASE 5
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.Os
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.Sh NAME
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.Nm os-release
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.Nd file describing the current OS and some of its attributes
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.Sh DESCRIPTION
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The
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.Nm
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file is a new-line separated list of key value pairs.
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The syntax of this file is a reduced
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.Xr sh 1
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variable assignment with the
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following restrictions:
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.Bl -bullet
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.It
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Strings cannot be concatenated together
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.It
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No variable expansion is done
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.It
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All shell special characters must be quoted as documented in
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.Xr sh 1
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.It
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Variable assignments must be included inside of double quotes
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if they contain characters outside of A-Z, a-z and 0-9
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.It
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All strings should be UTF-8 format
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.It
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Non-printable characters should not be used in the strings
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.El
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.Pp
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Lines starting with the character
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.Ql #
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are ignored as comments.
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.Sh VARIABLES
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The following variables are defined by the standard.
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.Bl -tag -width XXXXXXXXXX -compact
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.It Dv NAME
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A string describing the preferred OS name.
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.It Dv VERSION
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Version string for the OS, in its usual and customary format.
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.It Dv ID
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Lower case version of the name with only a-z, 0-9,
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.Ql . ,
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.Ql - ,
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and
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.Ql _ .
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.It Dv VERSION_ID
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Lower case version of the version with only a-z, 0-9,
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.Ql . ,
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.Ql - ,
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and
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.Ql _ .
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.It Dv PRETTY_NAME
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A pretty version of the name presented to the user.
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May contain release information.
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.It Dv ANSI_COLOR
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Suggested color presentation for the OS.
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This string should be suitable for inclusion within an ESC [ m ANSI/ECMA-48
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escape sequence to render the OS in its preferred color.
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This variable is optional.
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.It Dv CPE_NAME
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A CPE name for the operating system.
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This field shall follow the NIST Common Platform Enumeration specification.
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.It Dv HOME_URL
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.It Dv SUPPORT_URL
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.It Dv BUG_REPORT_URL
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.It Dv PRIVACY_POLICY_URL
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Links on the internet, in RFC 3986 format for different aspects of this OS.
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These variables are optional.
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.It Dv BUILD_ID
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A string identifying the build.
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This variable is optional.
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.It Dv VARIANT
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A string describing the variant of this operating system.
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This variable is optional.
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.It Dv VARIANT_ID
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Lower case version of the variant with only a-z, 0-9,
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.Ql . ,
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.Ql - ,
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and
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.Ql _ .
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This variable is optional.
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.El
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.Pp
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All other variables have no standard-defined meaning.
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.Sh FILES
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.Bl -tag -width XXXXXXXXXX -compact
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.It Pa /etc/os-release
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Symbolic link to actual
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.Pa os-release
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file.
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.It Pa /var/run/os-release
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Generated os-release file describing the currently running system.
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.Sh SEE ALSO
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.Bl -tag -width XXXXXXXXXX -compact
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.It CPE Specification
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.Lk https://csrc.nist.gov/projects/security-content-automation-protocol/scap-specifications/cpe
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.It RFC 3986
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.Lk https://tools.ietf.org/html/rfc3986
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.It os-release Specification
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.Lk https://www.linux.org/docs/man5/os-release.html
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.Sh HISTORY
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This file first appeared in
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.Fx 13.0 .
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