vol_id - probe filesystem type and read label and uuid
vol_id [--export] [-t] [-l] [-u] [device]
is usually called from a udev rule, to provide udev with the filesystem type, the label and the uuid of a volume.
supports all common filesystem formats and detects various raid setups to prevent the recognition of raid members as a volume with a filesystem.
print all values in key/value format to import them into the environment.
print the filesystem type
print the label of a volume
print the uuid of a volume
Set the syslog priority.
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.