Linux Atlas
ENRU

Disk and Storage

blkid

Shows block device identifiers and filesystem metadata.

blkid prints UUIDs, labels, and filesystem types for block devices. It is useful for fstab and storage troubleshooting.

Syntax
blkid [device]

Arguments explained

  • device is optional; without it blkid scans known block devices.
  • -s filters tags such as UUID or TYPE.

Common examples

List UUIDs
sudo blkid

Shows identifiers for detected filesystems.

Show one device
sudo blkid /dev/sda1

Displays metadata for a specific partition.

blkid Command
FieldDetails
Commandblkid
CategoryDisk and Storage
Primary useShows block device identifiers and filesystem metadata.
Syntaxblkid [device]

Related articles

lsblk

Lists block devices in a tree.

mount

Attaches a filesystem to the directory tree.

fdisk

Views and edits partition tables.