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42 lines
1.1 KiB
Groff
42 lines
1.1 KiB
Groff
.TH VOL_ID 8 "November 2005" "" "Linux Administrator's Manual"
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.SH NAME
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vol_id \- probe filesystem type and read label and uuid
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.SH SYNOPSIS
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.BI vol_id
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[\fI--export\fP|\fI-t\fP|\fI-l\fP|\fI-u\fP] \fIblockdevice\fP
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.SH "DESCRIPTION"
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.B vol_id
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is normally called from a udev rule, to provide udev with the
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label and uuid of a filesystem. vol_id supports all common
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filesystem formats and detects various raid setups to prevent
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the recognition of raid members as a filesystem.
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.SH USAGE
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.B vol_id
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opens the device node specified at the commandline.
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.SH OPTIONS
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The following commandline switches are supported to specify what vol_id
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should print:
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.TP
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.BI --export
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print all values in key/value format to import them into the environment.
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.TP
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.BI -l
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print the label of the volume
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.TP
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.BI -t
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print the type of the volume
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.TP
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.BI -u
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print the uuid of the volume
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.RE
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.SH EXIT STATUS
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.B vol_id
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will only return successful if the string asked for is not empty.
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All trailing whitespace will be removed, spaces replaced by underscore
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and slashes ignored.
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.SH SEE ALSO
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.BR udev (7)
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.SH AUTHORS
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Developed by Kay Sievers <kay.sievers@vrfy.org>.
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