BLKID(8) BLKID(8) (NAME) blkid - (UUID TYPE) (SYNOPSIS) blkid --label label | --uuid uuid blkid [--no-encoding --garbage-collect --list-one --cache-file file] [--output format] [--match-tag tag] [--match-token NAME=value] [device...] blkid --probe [--offset offset] [--output format] [--size size] [--match-tag tag] [--match-types list] [--usages list] [--no-part-details] device... blkid --info [--output format] [--match-tag tag] device... (DESCRIPTION) blkid (UUID) . blkid libblkid(3) . ( swap) ( NAME=value) ( LABEL UUID) . lsblk(8) lsblk --fs findmnt(8) . lsblk(8) (root) . blkid . blkid libblkid(3) . device . device . /proc/partitions ( ) . blkid : NAME=value NAME=value . blkid ( ) . (-p) . wipefs(8) . (OPTIONS) size offset KiB (=1024) MiB (=1024*1024) GiB TiB PiB EiB ZiB YiB ( "iB" "K" "KiB" ) KB (=1000) MB (=1000*1000) GB TB PB EB ZB YB . -c, --cache-file cachefile cachefile ( ). ( ) /dev/null . -d, --no-encoding . ^ -M . --output udev . -D, --no-part-details ( PART_ENTRY_*) . -g, --garbage-collect blkid . -H, --hint setting (probing hint). . "session_offset=number" UDF . -i, --info / (I/O Limits I/O). 'export' . --probe . -k, --list-filesystems RAID . -l, --list-one --match-token . / ( udev ). : Device Mapper EVMS LVM MD . blkid . blkid LABEL UUID --match-token udev . ( mount(8) ) . -L, --label label label --list-one --output device --match-token LABEL=label . udev /dev/disk/by-label ( /etc/blkid.conf). . --label udev . blkid(8) e2fsprogs -L -o list . -L -l -o device -t LABEL=label -o list . -n, --match-types list ( ) (). "no" . : blkid --probe --match-types vfat,ext3,ext4 /dev/sda1 vfat ext3 ext4 blkid --probe --match-types nominix /dev/sda1 minix . --probe . -o, --output format . . -s . format : full () value list (--probe --info) . lsblk(8) . device --label --uuid . udev key="value" udev ID_FS_ ID_PART_ . udev UTF-8 ( ) '_' . _ENC . udev ID_FS_AMBIVALENT ID_PART_ENTRY_* . . export key=value / ( --info) . ^ -M . json JSON. -O, --offset offset ( --probe ). --info . -p, --probe ( ). ( PTTYPE) ( PART_ENTRY_*) . libblkid --probe ( PART_ENTRY_UUID= PARTUUID=). --no-part-details . -s, --match-tag tag () tag . --match-tag . . --match-tag none . -S, --size size / ( --probe ). -t, --match-token NAME=value NAME value . NAME TYPE LABEL UUID . . -u, --usages list ( ) "usage". : filesystem raid crypto other. "no" . : blkid --probe --usages filesystem,other /dev/sda1 ( swap) blkid --probe --usages noraid /dev/sda1 RAID . --probe . -U, --uuid uuid uuid . --label . -h, --help . -V, --version . (EXIT STATUS) ( --match-token) 0 . --match-tag . () 2 . 4 . (-p) 8 . (CONFIGURATION FILE) /etc/blkid.conf BLKID_CONF . libblkid : SEND_UEVENT= /dev/disk/by-{label,uuid,partuuid,partlabel}/ LABEL UUID PARTUUID PARTLABEL uevent . "yes" . CACHE_FILE= . BLKID_FILE . /run/blkid/blkid.tab /run /etc/blkid.tab . EVALUATE= () LABEL UUID . libblkid "udev" "scan" . . "udev,scan" . "udev" /dev/disk/by-* udev "scan" /proc/partitions . (ENVIRONMENT) LIBBLKID_DEBUG=all . (AUTHORS) blkid Andreas Dilger libblkid Theodore Ts'o Karel Zak . (SEE ALSO) libblkid(3), findfs(8), lsblk(8), wipefs(8) (REPORTING BUGS) . (AVAILABILITY) blkid util-linux . util-linux BLKID(8)