Comandos de la terminal/lsblk

• lsblk

lsblk

[root@Llawyr ~]# lsblk --help

Usage:
 lsblk [options] [<device> ...]

Options:
 -a, --all            print all devices
 -b, --bytes          print SIZE in bytes rather than in human readable format
 -d, --nodeps         don't print slaves or holders
 -D, --discard        print discard capabilities
 -e, --exclude <list> exclude devices by major number (default: RAM disks)
 -f, --fs             output info about filesystems
 -i, --ascii          use ascii characters only
 -I, --include <list> show only devices with specified major numbers
 -l, --list           use list format output
 -m, --perms          output info about permissions
 -n, --noheadings     don't print headings
 -o, --output <list>  output columns
 -p, --paths          print complete device path
 -P, --pairs          use key="value" output format
 -r, --raw            use raw output format
 -s, --inverse        inverse dependencies
 -S, --scsi           output info about SCSI devices
 -t, --topology       output info about topology

 -h, --help     display this help and exit
 -V, --version  output version information and exit

Available columns (for --output):
        NAME  device name
       KNAME  internal kernel device name
     MAJ:MIN  major:minor device number
      FSTYPE  filesystem type
  MOUNTPOINT  where the device is mounted
       LABEL  filesystem LABEL
        UUID  filesystem UUID
   PARTLABEL  partition LABEL
    PARTUUID  partition UUID
          RA  read-ahead of the device
          RO  read-only device
          RM  removable device
       MODEL  device identifier
      SERIAL  disk serial number
        SIZE  size of the device
       STATE  state of the device
       OWNER  user name
       GROUP  group name
        MODE  device node permissions
   ALIGNMENT  alignment offset
      MIN-IO  minimum I/O size
      OPT-IO  optimal I/O size
     PHY-SEC  physical sector size
     LOG-SEC  logical sector size
        ROTA  rotational device
       SCHED  I/O scheduler name
     RQ-SIZE  request queue size
        TYPE  device type
    DISC-ALN  discard alignment offset
   DISC-GRAN  discard granularity
    DISC-MAX  discard max bytes
   DISC-ZERO  discard zeroes data
       WSAME  write same max bytes
         WWN  unique storage identifier
        RAND  adds randomness
      PKNAME  internal parent kernel device name
        HCTL  Host:Channel:Target:Lun for SCSI
        TRAN  device transport type
         REV  device revision
      VENDOR  device vendor

For more details see lsblk(8).

[root@Llawyr ~]# lsblk --version
lsblk from util-linux 2.24

[root@Llawyr ~]# lsblk
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda      8:0    0 465.8G  0 disk 
├─sda1   8:1    0  48.8G  0 part /
├─sda2   8:2    0  11.7G  0 part [SWAP]
└─sda3   8:3    0 405.2G  0 part /home
sdb      8:16   1         0 disk 
sr0     11:0    1  1024M  0 rom  

[root@Llawyr ~]# lsblk /dev/sda
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda      8:0    0 465.8G  0 disk 
├─sda1   8:1    0  48.8G  0 part /
├─sda2   8:2    0  11.7G  0 part [SWAP]
└─sda3   8:3    0 405.2G  0 part /home

[root@Llawyr ~]# lsblk -d  /dev/sda
NAME MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda    8:0    0 465.8G  0 disk 

[root@Llawyr ~]# lsblk -f
NAME   FSTYPE LABEL UUID                                 MOUNTPOINT
sda                                                      
├─sda1 ext4         e8217457-cd9d-40a0-a32c-6d0189bdd579 /
├─sda2 swap         ad93cd6c-e55a-4f42-88fe-9d44d08d243a [SWAP]
└─sda3 ext4         8a0c6fab-047a-4366-a1c1-8fd6bf350d03 /home
sr0                                                      

[root@Llawyr ~]# lsblk -fl
NAME FSTYPE LABEL UUID                                 MOUNTPOINT
sda                                                    
sda1 ext4         e8217457-cd9d-40a0-a32c-6d0189bdd579 /
sda2 swap         ad93cd6c-e55a-4f42-88fe-9d44d08d243a [SWAP]
sda3 ext4         8a0c6fab-047a-4366-a1c1-8fd6bf350d03 /home
sr0                         

[root@Llawyr ~]# lsblk -m
NAME     SIZE OWNER GROUP MODE
sda    465.8G root  disk  brw-rw----
├─sda1  48.8G root  disk  brw-rw----
├─sda2  11.7G root  disk  brw-rw----
└─sda3 405.2G root  disk  brw-rw----
sr0     1024M root  cdrom brw-rw----

[root@Llawyr ~]# lsblk -mn
sda    465.8G root  disk  brw-rw----
├─sda1  48.8G root  disk  brw-rw----
├─sda2  11.7G root  disk  brw-rw----
└─sda3 405.2G root  disk  brw-rw----
sr0     1024M root  cdrom brw-rw----

[root@Llawyr ~]# lsblk -P
NAME="sda" MAJ:MIN="8:0" RM="0" SIZE="465.8G" RO="0" TYPE="disk" MOUNTPOINT=""
NAME="sda1" MAJ:MIN="8:1" RM="0" SIZE="48.8G" RO="0" TYPE="part" MOUNTPOINT="/"
NAME="sda2" MAJ:MIN="8:2" RM="0" SIZE="11.7G" RO="0" TYPE="part" MOUNTPOINT="[SWAP]"
NAME="sda3" MAJ:MIN="8:3" RM="0" SIZE="405.2G" RO="0" TYPE="part" MOUNTPOINT="/home"
NAME="sr0" MAJ:MIN="11:0" RM="1" SIZE="1024M" RO="0" TYPE="rom" MOUNTPOINT=""

[root@Llawyr ~]# lsblk -t
NAME   ALIGNMENT MIN-IO OPT-IO PHY-SEC LOG-SEC ROTA SCHED RQ-SIZE  RA WSAME
sda            0    512      0     512     512    1 cfq     20480 128    0B
├─sda1         0    512      0     512     512    1 cfq     20480 128    0B
├─sda2         0    512      0     512     512    1 cfq     20480 128    0B
└─sda3         0    512      0     512     512    1 cfq     20480 128    0B
sr0            0    512      0     512     512    1 cfq       128 128    0B