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LSBLK(8)		    System Manager's Manual		      LSBLK(8)

NAME
       lsblk --	list block devices and their device trees

SYNOPSIS
       lsblk [disk]
       lsblk -d
       lsblk --disks
       lsblk --version
       lsblk --help

DESCRIPTION
       The lsblk(8) tool prints	tree oriented view of block/character devices.
       Output is intended to provide compact summary of	whole disks, partition
       schemes,	partitions with	related	information about them like encryption
       layers or size and basic	identification.

       If  the	optional disk option is	specified - only device	tree rooted at
       that device is displayed.

       The default output format is columnar - the columns include:
       DEVICE	Device or provider name.
       MAJ:MIN	Major/minor numbers formatted as major:minor when available.
       SIZE	Size of	the device/provider.
       TYPE	Provider/partition type	(for example, GPT,  MBR,  freebsd-ufs,
		freebsd-zfs).
       LABEL	Label associated with provider when available.
       MOUNT	Mount point when available.  Certain filesystem	types may dis-
		play sentinel such as `<ZFS>' to indicate managed mounts.

OPTIONS
	     -d	| --disks
			Display	 only  whole disks (no partition/provider tree
			expansion).  This mode is commonly used	 to  summarize
			inventory and model information.

	     --help	Display	brief usage message and	exit.

	     --version	Display	version	information and	exit.

EXAMPLES
       List all	block devices in the system:

	     # lsblk
	     DEVICE	    MAJ:MIN SIZE TYPE			   LABEL MOUNT
	     ada0	      0:92  932G GPT			       - -
	       ada0p1	      0:100 200M efi			efiboot0 -
	       ada0p2	      0:101 512K freebsd-boot		gptboot0 -
	       <FREE>	      -:-   492K -			       - -
	       ada0p3	      0:102 931G freebsd-zfs		    zfs0 <ZFS>
	       ada0p3.eli     0:106 931G freebsd-zfs		       - <ZFS>

       List only the da1 device	tree:

	     # lsblk da1
	     DEVICE	    MAJ:MIN SIZE TYPE			   LABEL MOUNT
	     da1	      0:80  2.0G MBR			       - -
	       da1s1	      0:80  2.0G freebsd		       - -
		 da1s1a	      0:81  1.0G freebsd-ufs		    root /
		 da1s1b	      0:82  1.0G freebsd-swap		    swap SWAP

       List whole disks	only:

	     # lsblk -d
	     DEVICE SIZE MODEL
	     ada0   1.8T Samsung SSD 860 QVO 2TB
	     ada1   119G SAMSUNG SSD PM830 mSATA 128GB
	     -	      2T TOTAL SYSTEM STORAGE

       Display version information:

	     # lsblk --version

       Enumerate physical disks	as seen	by the kernel (useful for establishing
       the set of disk roots prior to invoking lsblk(8)	tool:

	     # sysctl kern.disks
	     kern.disks: ada0 da0 da1

SEE ALSO
       sysctl(8),   mdconfig(8),   gpart(8),  diskinfo(8),  geom(8),  geli(8),
       zfs(8), zpool(8)

HISTORY
       The FreeBSD implementation of lsblk(8) tool first appeared in 2020.

AUTHORS
       Author and maintainer of	FreeBSD	version	of lsblk(8) is:

       Slawomir	Wojciech Wojtczak (vermaden) <vermaden@interia.pl>

FreeBSD	ports 15.quarterly	March 11, 2026			      LSBLK(8)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=lsblk&sektion=8&manpath=FreeBSD+Ports+15.1.quarterly>

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