vol_id - probe filesystem type and read label and uuid
vol_id [--export] [-t] [-l] [-u] [device]
vol_id is usually called from a udev rule, to provide udev with the filesystem type, the label and the uuid of a volume. vol_id supports all common filesystem formats and detects various raid setups to prevent the recognition of raid members as a volume with a filesystem.
--export print all values in key/value format to import them into the environment. -t print the filesystem type -l print the label of a volume -u print the uuid of a volume
UDEV_LOG Set the syslog priority.
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.
Written by Kay Sievers <firstname.lastname@example.org>
|volume_id||VOL_ID (8)||March 2006|