man vol_id (Administration système) - probe filesystem type and read label and uuid
NAME
vol_id - probe filesystem type and read label and uuid
SYNOPSIS
vol_id [--export|-t|-l|-u] blockdevice
DESCRIPTION
vol_id is normally called from a udev rule, to provide udev with the label and uuid of a filesystem. vol_id supports all common filesystem formats and detects various raid setups to prevent the recognition of raid members as a filesystem.
USAGE
vol_id opens the device node specified at the commandline.
OPTIONS
The following commandline switches are supported to specify what vol_id should print:
- --export
- print all values in key/value format to import them into the environment.
- -l
- print the label of the partition
- -t
- print the type of the partition
- -u
- print the uuid of the partition
EXIT STATUS
vol_id will only return successful if the string asked for is not empty. All trailing whitespace will be removed, spaces replaced by underscore and slashes ignored.
SEE ALSO
AUTHORS
Developed by Kay Sievers <kay.sievers@vrfy.org>.