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VOL_ID(8)			    vol_id			     VOL_ID(8)

NAME
       vol_id - probe filesystem type and read label and uuid

SYNOPSIS
       vol_id [--export] [--type] [--label] [--label-raw] [--uuid]
	      [--skip-raid] [--probe-all] [--offset=bytes] [--debug] [--help]
	      [device]

DESCRIPTION
       vol_id is usually called from a udev rule, to provide udev with the
       filesystem type, the label and the uuid of a volume. It supports most
       of the common filesystem formats and detects various raid setups to
       prevent the recognition of raid members as a volume with a filesystem.

OPTIONS
       --export
	   Print all values in key/value format to import them into the
	   environment.

       --type
	   Print the filesystem type.

       --label
	   Print the safe version of volume label suitable for use as
	   filename.

       --label-raw
	   Print the raw volume label.

       --uuid
	   Print the uuid of a volume.

       --skip-raid
	   Skip detection of raid metadata.

       --probe-all
	   Probe for all types and print all matches.

       --offset=bytes
	   Start probing at the given offset, instead of the beginning of the
	   volume. The offset value is specified in bytes.

       --debug
	   Print debug messages to stderr.

       --help
	   Print usage.

ENVIRONMENT
       UDEV_LOG
	   Set the syslog priority.

EXIT STATUS
       vol_id will only return successful if the value asked for is not empty.
       All trailing whitespace will be removed, spaces replaced by underscore
       and slashes ignored.

AUTHOR
       Written by Kay Sievers kay.sievers@vrfy.org

SEE ALSO
       udev(7)

volume_id			  March 2006			     VOL_ID(8)

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