The libblkid library is used to identify block devices (disks) as to their
content (e.g. filesystem type) as well as extracting additional information
such as filesystem labels/volume names, unique identifiers/serial numbers, etc.
A common use is to allow use of LABEL= and UUID= tags instead of hard-coding
specific block device names into configuration files.

From util-linux-ng.

Homepage:
https://github.com/karelzak/util-linux
