Blkid

lastmod 2026-11-10created 2025-12-152 edits

blkid is a command-line tool on Linux that queries the attributes of block devices. It prints each partition's UUID, label, file system type, PARTUUID, and so on, and is included in the util-linux package. It is often used to look up values when writing mount entries in /etc/fstab by UUID instead of device name, and it usually has to be run with root privileges to show complete information.

See also

• fstab