-udev_volume_id opens the blockdevice specified by the environment variable
-DEVPATH and searches for a filesystem superblock to read the label. The
-following commandline switches are supported to specify what udev_volume_id
-should print to stdout:
-
- no option prints all values
- -h prints help text
- -l prints the label of the partition
- -u prints the uuid of the partition
- -d read disk instead of partition
-
-If -d is specified udev_volume_id tries to read the label from the main
-block device where the partition belongs to. For now this is only useful
-for s390 dasd labels.
-
-udev_volume_id will only return successful if the string asked for, is not
+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
+
+vol_id will only return successful if the string asked for, is not