systemd/man/binfmt.d.5
2014-04-27 12:02:08 +02:00

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.TH "BINFMT\&.D" "5" "" "systemd 208" "binfmt.d"
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.SH "NAME"
binfmt.d \- Configure additional binary formats for executables at boot
.SH "SYNOPSIS"
.PP
/etc/binfmt\&.d/*\&.conf
.PP
/run/binfmt\&.d/*\&.conf
.PP
/usr/lib/binfmt\&.d/*\&.conf
.SH "DESCRIPTION"
.PP
At boot,
\fBsystemd-binfmt.service\fR(8)
reads configuration files from the above directories to register in the kernel additional binary formats for executables\&.
.SH "CONFIGURATION FORMAT"
.PP
Each file contains a list of binfmt_misc kernel binary format rules\&. Consult
\m[blue]\fBbinfmt_misc\&.txt\fR\m[]\&\s-2\u[1]\d\s+2
for more information on registration of additional binary formats and how to write rules\&.
.PP
Empty lines and lines beginning with ; and # are ignored\&. Note that this means you may not use ; and # as delimiter in binary format rules\&.
.PP
Each configuration file shall be named in the style of
\fIprogram\fR\&.conf\&. Files in
/etc/
override files with the same name in
/usr/lib/
and
/run/\&. Files in
/run/
override files with the same name in
/usr/lib/\&. Packages should install their configuration files in
/usr/lib/, files in
/etc/
are reserved for the local administrator, who may use this logic to override the configuration files installed from vendor packages\&. All files are sorted by their filename in lexicographic order, regardless in which of the directories they reside\&. If multiple files specify the same binary type name, the entry in the file with the lexicographically latest name will be applied\&.
.PP
If the administrator wants to disable a configuration file supplied by the vendor, the recommended way is to place a symlink to
/dev/null
in
/etc/binfmt\&.d/
bearing the same filename\&.
.SH "EXAMPLE"
.PP
\fBExample\ \&1.\ \&/etc/binfmt.d/wine.conf example:\fR
.sp
.if n \{\
.RS 4
.\}
.nf
# Start WINE on Windows executables
:DOSWin:M::MZ::/usr/bin/wine:
.fi
.if n \{\
.RE
.\}
.SH "SEE ALSO"
.PP
\fBsystemd\fR(1),
\fBsystemd-binfmt.service\fR(8),
\fBsystemd-delta\fR(1),
\fBwine\fR(8)
.SH "NOTES"
.IP " 1." 4
binfmt_misc.txt
.RS 4
\%https://www.kernel.org/doc/Documentation/binfmt_misc.txt
.RE