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94 lines
3.3 KiB
Groff
94 lines
3.3 KiB
Groff
'\" t
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.TH "BINFMT\&.D" "5" "" "systemd 219" "binfmt.d"
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.\" -----------------------------------------------------------------
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.\" * Define some portability stuff
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.\" -----------------------------------------------------------------
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.\" http://bugs.debian.org/507673
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.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.ie \n(.g .ds Aq \(aq
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.el .ds Aq '
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.\" -----------------------------------------------------------------
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.\" * set default formatting
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.\" -----------------------------------------------------------------
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.\" disable hyphenation
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.nh
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.\" disable justification (adjust text to left margin only)
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.ad l
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.\" -----------------------------------------------------------------
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.\" * MAIN CONTENT STARTS HERE *
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.\" -----------------------------------------------------------------
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.SH "NAME"
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binfmt.d \- Configure additional binary formats for executables at boot
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.SH "SYNOPSIS"
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.PP
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/etc/binfmt\&.d/*\&.conf
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.PP
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/run/binfmt\&.d/*\&.conf
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.PP
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/usr/lib/binfmt\&.d/*\&.conf
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.SH "DESCRIPTION"
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.PP
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At boot,
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\fBsystemd-binfmt.service\fR(8)
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reads configuration files from the above directories to register in the kernel additional binary formats for executables\&.
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.SH "CONFIGURATION FORMAT"
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.PP
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Each file contains a list of binfmt_misc kernel binary format rules\&. Consult
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\m[blue]\fBbinfmt_misc\&.txt\fR\m[]\&\s-2\u[1]\d\s+2
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for more information on registration of additional binary formats and how to write rules\&.
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.PP
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Empty lines and lines beginning with ; and # are ignored\&. Note that this means you may not use ; and # as delimiter in binary format rules\&.
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.SH "CONFIGURATION DIRECTORIES AND PRECEDENCE"
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.PP
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Configuration files are read from directories in
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/etc/,
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/run/, and
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/usr/lib/, in order of precedence\&. Each configuration file in these configuration directories shall be named in the style of
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\fIfilename\fR\&.conf\&. Files in
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/etc/
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override files with the same name in
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/run/
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and
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/usr/lib/\&. Files in
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/run/
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override files with the same name in
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/usr/lib/\&.
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.PP
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Packages should install their configuration files in
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/usr/lib/\&. Files in
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/etc/
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are reserved for the local administrator, who may use this logic to override the configuration files installed by vendor packages\&. All configuration files are sorted by their filename in lexicographic order, regardless of which of the directories they reside in\&. If multiple files specify the same option, the entry in the file with the lexicographically latest name will take precedence\&. It is recommended to prefix all filenames with a two\-digit number and a dash, to simplify the ordering of the files\&.
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.PP
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If the administrator wants to disable a configuration file supplied by the vendor, the recommended way is to place a symlink to
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/dev/null
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in the configuration directory in
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/etc/, with the same filename as the vendor configuration file\&.
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.SH "EXAMPLE"
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.PP
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\fBExample\ \&1.\ \&/etc/binfmt.d/wine.conf example:\fR
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.sp
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.if n \{\
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.RS 4
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.\}
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.nf
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# Start WINE on Windows executables
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:DOSWin:M::MZ::/usr/bin/wine:
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.fi
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.if n \{\
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.RE
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.\}
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.SH "SEE ALSO"
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.PP
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\fBsystemd\fR(1),
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\fBsystemd-binfmt.service\fR(8),
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\fBsystemd-delta\fR(1),
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\fBwine\fR(8)
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.SH "NOTES"
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.IP " 1." 4
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binfmt_misc.txt
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.RS 4
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\%https://www.kernel.org/doc/Documentation/binfmt_misc.txt
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.RE
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