-vol_id - partition, filesystem, disklabel reader
+vol_id - volume, filesystem, disklabel reader
This program is normally called from a udev rule, to provide udev with the
-name, uuid or the filesystem type of a partition to name a device node.
+name, uuid or the filesystem type of a volume to name a device node.
vol_id opens the blockdevice node specified at the commandline.
The following commandline switches are supported to specify what vol_id
should print:
--export prints all values
-h prints help text
- -l prints the label of the partition
- -u prints the uuid of the partition
+ -l prints the label of the volume
+ -u prints the uuid of the volume
vol_id will only return successful if the string asked for, is not
empty. All trailing whitespace will be removed, spaces replaced by underscore