BLKID(8) BLKID(8) blkid - blkid --label | --uuid uuid blkid [--no-encoding --garbage-collect --list-one --cache-file ] [--output ] [--match-tag ] [--match-token =] [...] blkid --probe [--offset ] [--output ] [--size ] [--match-tag ] [--match-types ] [--usages ] [--no-part-details] ... blkid --info [--output ] [--match-tag ] ... blkid libblkid(3). (, '), , (, =) ( LABEL UUID). lsblk(8) lsblk --fs findmnt(8) . lsblk(8) , , root . blkid , , root, . blkid, , libblkid(3). , . . , /proc/partitions, . blkid : = = . blkid , ( ). (-p) . wipefs(8) ( ) . KiB (=1024), MiB (=1024*1024) GiB, TiB, PiB, EiB, ZiB YiB ( <> ', , <> , <>) KB (=1000), MB (=1000*1000) GB, TB, PB, EB, ZB YB. -c, --cache-file - -, (. , ). ( , ' ), /dev/null. -d, --no-encoding . , ^ M-. , --output udev , . -D, --no-part-details ( PART_ENTRY_*) . -g, --garbage-collect blkid , . -H, --hint . ' , , . <>> UDF. -i, --info - ( -). <>. --probe. -k, --list-filesystems RAID . -l, --list-one , , --match-token. , , / ( . udev ). : Device Mapper, EVMS, LVM, MD , . . , blkid , . blkid udev, LABEL UUID --match-token. , ( mount(8) ) , . -L, --label , ; --list-one --output device --match-token LABEL=. udev /dev/disk/by-label ( /etc/blkid.conf). ; . --label udev, . , blkid(8) e2fsprogs -L -o list. -l -o device -t LABEL= -o list -L. -n, --match-types () ( ). <> , . : blkid --probe --match-types vfat,ext3,ext4 /dev/sda1 vfat, ext3 ext4, blkid --probe --match-types nominix /dev/sda1 , minix. --probe. -o, --output . , . . -s. : full ( ) value list ; (--probe --info). , lsblk(8). device ; --label --uuid udev ="" udev; ID_FS_ ID_PART_. udev; ASCII, UTF-8. ( ) <<_>>. _ENC . udev ID_FS_AMBIVALENT, , ID_PART_ENTRY_* , . . export = ; , - ( --info). ^ M-, . json Print the tags entries in JSON objects. -O, --offset ( --probe). --info. -p, --probe ( ). , ( PTTYPE) ( PART_ENTRY_*). , , , libblkid, , --probe (, PART_ENTRY_UUID= PARTUUID=). . --no-part-details. -s, --match-tag () , . --match-tag. , () . , - , --match-tag none - . -S, --size / ( --probe). -t, --match-token = , , . TYPE, LABEL UUID. , ; , . -u, --usages . : filesystem, raid, crypto other. <> , . : blkid --probe --usages filesystem,other /dev/sda1 ( ') blkid --probe --usages noraid /dev/sda1 , RAID. --probe. -U, --uuid UUID , uuid . --label. -h, --help . -V, --version . , ( --match-token), , 0. , --match-tag , . , () , - , 2. 4. (-p), 8. /etc/blkid.conf BLKID_CONF. libblkid: SEND_UEVENT= uevent, /dev/disk/by-{label,uuid,partuuid,partlabel}/ LABEL, UUID, PARTUUID PARTLABEL . "yes". CACHE_FILE=<> . BLKID_FILE. /run/blkid/blkid.tab /etc/blkid.tab /run. EVALUATE=<> LABEL UUID. libblkid <> <>. . <>. <> /dev/disk/by-*, <> - /proc/partitions. LIBBLKID_DEBUG=all . blkid Andreas Dilger libblkid Theodore Ts'o Karel Zak. libblkid(3), findfs(8), lsblk(8), wipefs(8) blkid util-linux, Linux . util-linux 2.42.3 2026-09-02 BLKID(8)